I dont know what to say after "Hi"
I know this is really basic, but I honestly dont. simple pickup guys usually say "I noticed you are pretty and wanted to meet you" but that has never worked for me. I think it's too strong and direct.

what are some examples of things that I could say after "Hi"? things that work in almost every situation?
one example that I like is to talk about their handshake and go from there. "you have a firm hand shake, do you go to the gym?" I like it because it's universal, after saying "hi" you are almost always going to shake hands so the line is almost always relevant. another reason I like it is because it opens up the possibility of more conversation. "do you go to the gym" leads to more possible topics that you could talk about.

can you give me some other examples of things that I could say after "Hi"?

I dont know what to say after "Hi"
I know this is really basic, but I honestly dont. simple pickup guys usually say "I noticed you are pretty and wanted to meet you" but that has never worked for me. I think it's too strong and direct.

what are some examples of things that I could say after "Hi"? things that work in almost every situation?
one example that I like is to talk about their handshake and go from there. "you have a firm hand shake, do you go to the gym?" I like it because it's universal, after saying "hi" you are almost always going to shake hands so the line is almost always relevant. another reason I like it is because it opens up the possibility of more conversation. "do you go to the gym" leads to more possible topics that you could talk about.

can you give me some other examples of things that I could say after "Hi"?

after you say hi you could trying getting a very shocked look on your face and give them a compliment like " oh hey! nice shoes or I love those earrings." just try complimenting< but don't go over board with it give a compliment then try some negging, also don't forget before you leave a group to ask how they all know each other its another great way to increase the conversation and learn a little back story about them. Good luck!

There probably isn't anything to say after "hi", since you really don't have a valid reason to say "hi" in the first place. You just do so because you want to get laid. And that's the wrong frame!

This is what I would do, assuming:

1. There is nothing situational to comment.
2. I don't really have a reason to walk up to the girl, other than my own sexual urges.

I would walk past the girl, or walk up next to her in the bar, look at her and say "hi" with a smile. The very next second I would ignore her and look straight forward again (in a relaxed and confident way), either keep walking or trying to get the bartender's attention. Let there be a pause, some "space". That makes her more comfortable, and you don't give her that vibe that you want something from her. You are just a cool guy.

If standing in the bar, it's now up to her to show you some interest back. If you have ordered your beer and she still haven't said something, you probably have a cold case. That is when you try to comment something situational or tell an interesting story - and this is the only valid excuse to have canned material IMO. If she still doesn't hook, ignore her.

If walking past the girl, I would not bother about her for a while. I've done my part at the moment, acknowledging her and making her aware of my presence. If I run into her again, I would say something like "oh, it's you again", and follow up with a question like "do you want to grab a beer at the bar?" as if you two are already friends, and take it from there.