The same way that she would in front of any person she liked, warm and interested, smiling (genuinely), and with self respect.
You wish to be seen as an equal, someone worthy of respect, but also as someone interesting sexually which complicates things if you allow it to. Guys develop an interest in girls visually a lot of the time, then notice their other qualities which seal the deal. Girls sometimes make the mistake of attracting a guy then playing mysterious on him...he can't read your mind, he needs a hand with that if you're to ever get anything going. Some guys are shy, and most guys are as scared of you as you are of them when it comes to dating initially...so being friendly is a huge help getting past that.
Flirting a little is nice, acting like a tart puts the guys off or worse...attracts someone out for one thing and gets you a bad rep. Don't be afraid to take initiative and push a little, if you ask a guy at the end of first date "Aren't you going to kiss me goodnight then?" with a nice smile and some gentle humour, he's going to feel like he's invited and the pressure is gone.
Be genuine, be warm, LISTEN, pay attention to JUST that one guy and make eye contact so he knows for sure you like him. If you get the chance to do any little thing for him or take his side in smething, all the better. It all shows you like him, and gives him the all clear to respond.
Don't look up body language and fake it, you have natural stuff going on, use that instead. Fake looks awful. A light touch or innocuous body contact is all good too.
Don't run, don't chase too hard. Just be there looking like that beautiful smiling girl he'd want to know better and who isn't out of his reach so can be approached.
Good luck :)
Chat with our AI personalities
A girl should act as herself and feel comfortable expressing her thoughts and feelings. It is important to respect the boy and communicate openly to build a healthy relationship. Being kind, confident, and genuine is key.