Sorry this is long, but it's my first attempt using these skills and i want to make sure i'm doing this right. so please give me feed back

Alright so this might not be the typical setting but whatever. I was invited over to a friend's place tonight to watch a movie, she's a HB8 with a boyfriend and her roommate is a single HB9. I've never met the HB9 before only seen her in pictures with my friend. I get there and and it's the two girls the boyfriend, HB9's little brother and 3 others guys. at first i was like fuck but i remembered that my emotions are just there to fuck me up. so i smile and introduce myself. I ignored HB9 after introductions and i talk to HB8 and make myself one of the guys. I discovered it's hard to not do what everyone else is doing and still be part of the group, but i made it work. out of the 3 other guys 2 were pussy wiped and i didn't even bother with them they could keep themselves off of HB9. the one guy who wasn't flirting was obviously the alpha in the group, so i befriended him and cracked a few really good jokes on him and turned the group on him. i'm pretty sure that what you want to do to be the alpha right? anyways after the movie was over, i finally got the chance to hit HB9 with a few negs. she dyed her hair red recently and i told her that most red heads are ridiculously hot or FUGLY. she asked me which one she was and i told her my momma taught me to not be say anything at all if it wasn't sweet. after a few minutes of the other 2 guys trying to flirt with her, she cracked a gay joke on them. we all laughed and for a DHV, i tide in how i've had a number of gay guys come up to me in my life grab my ass and tell me it was really nice. she asked me if i was gay and the only thing i could say was "what?" i cracked another neg on her a little bit later and then told her "i'll give you this any body can be born beautiful or buy it these days, but you're actually a sweet person... or at least thats how it appears." she said thanks and winked at me. after that HB8 went to bed and the rest of us watched Youtube videos. HB9 went to go pick out clothes for work in the morning, so i started ignoring her again while the other 2 guys tried intermittently flirting with her. i left not long after, and as i was leaving i made sure to say bye to everyone by name and as i was walking out the door with the former alpha, HB9 told us both bye and she asked me to come hang out with them again.

a few other details i left out:

this girl is known for whipping guys, but she is really sweet which kind of throws me off

the 2 guys who were flirting where trying to have a message contest with her and i disarmed it by calling them out on being pussy whipped

i tried the esp routine for a DHV and i messed it up so thats why the ass grabing thing came out

and whenever HB9 started asking me questions about my personal life i would answer them and turn them right back into stories or conversations for the group.

over all i feel like i flopped on the hook, and i'm not sure i did a real good job on the DHV.

i'm trying to play mysterious/ hard to get because i know this girl is always surronded by guys.

seeing how i've already been invited back, my plan is to not go over there the next time i'm invited and wait on a third oppertunity before i go back. but other than that, i'm not sure how i should hang my next encounter. advise or a general idea of what i should do or need to do would be awesome. also, as far as isolation goes, should i just wait and try to catch her when i see her on campus or get a number and set up a date?