I need a little inputs from all of you in understanding the signals being sent by this girl, and the wrong and the right moves being made by me. I would also appreciate if you can help me plan a further course of action to success.
2 days back, I met a French and a German girl , along with a German friend of mine I knew for 2 days. I live in the same dormitory as the Germans. We were returning home, and met incidentally on the train station. I was having small conversations with both the girls.. But the German girl seemed to be more interested in a conversation with me. I gave both the girls equal amount of my time.
Now, since the French girl was living very far away.. I offered her to stay in my room for the night ( I had a free bed in my room ). The German girl made jokes with me on the French girl staying in my room for the night.
What happened with the French girl is not the focus of discussion.
So, I met the German girl again yesterday , when I was visiting my German friend. They live on the same floor in the dormitory. I live 1 floor below them. She again showed me a lot of attention, and asked me if I wanted to join her for making some dinner in the kitchen. I declined her offer, and told her I would rather visit my friend and listen to some music he wanted to share with me. She mentioned that the music was not that good, and anyway, she would let me know when the dinner was ready, so I could join her if I wanted.
After some time, I met her in the kitchen, but unfortunately they had no extra food left for me. The German girl offered me to have her food, but I declined. I just tasted a bit. But I offered her to join me in cooking some food in my kitchen. But later, I got into conversation with some of my other friends in the kitchen. In the meantime, she had returned to her room.
I went looking for her into her room, and she was very glad to invite me in. She asked me if I had eaten dinner, and I mentioned I had not eaten yet. She was apologetic about not having joined me for cooking, and insisted that she prepare something for me. I repeatedly declined insisting that it wasn't necessary. But she was insistent.. and she went to prepare some food for me.
She joined me sometime later with some good sandwiches and a delicious salad
In the meantime I had been having conversations with her roommates. She was apologetic again about not having made anything better. I accepted her food with gratitude.. and promised to make her some food as well next time, along with sharing the same with her roommates, who were sitting in the same room with us. We had a 5 min discussion about some common interests.. and she wanted me to join her and her roommate for a trip to Berlin. 
We flirted a bit about her sleeping in my room next day.. after her french friend had slept as well. I told her I get my salary in cash.. and that next day was "pay day".. She liked to flirt on the lines of sleeping in my room on "pay day with cash". In between, she asked me to ask the German boy to join us. I went to find him in his room, but he was occupied with some other friends. I joined the girls back in the room.
Now starts the point of the game, which I fail to interpret well....
Later she started to play some Latin music which I like.. and her roommates got some drinks for all of us. We were joined by more friends, and a party was on in the room. Later the girls started to dance.. and th German girl wanted me to dance as well. I started to dance.. and I danced a little with her as well.. She was mostly dancing on her own.. and sometimes trying to get another German boy, who was in the room as well, to dance. She would sometimes sit down to play and add new music to the playlist..... and talk to the German boy... and sometimes just dance on the bed alone..
Now the German boy started to dance with one of the roommates.. something like a jive dance.. a couple type ... with swirling the girl, etc. The German girl, got me to dance a little of the couple dance with her as well.. but within a few seconds of the dance... she went back to working on the music.
In between her roommate started to make some pictures. Now.. in sometime, she suddenly got hold of me.. and asked her roommate to take a picture of us.. with her kissing me on the cheek
.. And then the next moment.. she was back to dancing.. and then back to the music. A little later.. the german guy left the room... and the girls sat down... to discuss.. the looks of some famous guy, who looked like the boyfriend of a roommate..The german girl kept mentioning that he looks hot... and the roommate kept teasing that the german was trying to show that she was attracted to her boyfriend. The girls talk started to bore me.. so I left the room.. without disturbing the conversation of the girls. ( Also because it was getting late for me.. since I had work very early in the morning.... and would have liked some sleep ). But I could hear the party and the drunk girls.. laughing and screaming crazily like they always do...
(Obviously none of the boys had the girls.. since they do not have a room for themselves unlike me. )..ahh.. The German guy told me that he has some special feelings for this girl...
.. and that he would like a relationship with her.. he tells me they have a lot in common. .. but if he hasn't managed to make any progress yet.. I doubt she is interested in him.... Though she does hang out with him. Today, they are going to a beach together.. with perhaps some other friends, and roommates. Everyone just arrived into the city last week.. and are basically new to the place... I have been in the city for 4 months.. and now the place and language much better.. I even try to teach the German girl some new words.... but mostly the slangs.. and abuses.. words which you generally learn first in every langauge... ... She seems interested... .. Tonight I will invite everyone to party with me... including the German girl, who will come with my German friend for sure after their day trip. ( Although I am a little anxious.. because tonight will be 3 other girls..who are close friends of each other ... one of them.. who is interested and perhaps in love with me...and thinks I am as well.. I haven't got her to bed yet.. Since I have met her for only 2 times.... But I fear, if I make my final approach to the German girl tonight.. I will never see the other girls again... .. I have been working on them for sometime now.. And I think 2 of the 3 are ready and highly interested in me. ... I would just like to have them all.. I understand that this post is long.... I just wanted to provide an overview of every interaction with this girl.... I would like some reviews, criticisms, inputs, etc on my approach towards this German girl, including some suggestions for the night.