If you’re talking to him, it’s okay to avert your gaze every once in a while. Staring into his eyes during the entire conversation may be a little intense.
If his friends notice you and like you, then they may talk about you in front of the guy, which will make him notice you more. If you become friends with his friends, they may even invite you out to parties, which will make it more likely for you to hang out with the guy. Resist the urge to send friends to ask if he likes you. He will think that you’re trying to force a relationship. This will get right back to him and he will not think it’s cool. Even asking the friends about how he’s doing or what he’s up to will basically reveal that you have a crush on the guy. (When the time comes to reveal your crush, you’ll want to be brave and do it yourself. )
If you look like you’re in high demand and surrounded by people, he won’t be scared off; instead, he’ll just want to get to know you even more. Guys love girls who are fun to be around. Let him see you cracking up instead of listlessly searching for something fun to do on your phone.
Some guys are shy and actually don’t like talking about themselves so much. If you get this vibe, then switch the subject to something you can both generally talk about, like your plans for the weekend.
Another way to flirt is to be a bit playful. You don’t have to act like you take yourself so seriously all the time.
It’s okay if the conversation stalls and you can’t think of anything to say. Smile, and then bring up something, even if it’s kind of random. Don’t get uncomfortable with a little bit of silence; if you and the guy are comfortable with each other, then pretty soon, you’ll be comfortable sharing silence too.
If the guy is intrigued by you, then he’ll want to spend more time with you, maybe even one on one. Don’t get too excited if he asks you out, but do let him know you’re happy about it.