Use his name when you talk to him, and make a bit of eye contact. Avoid making physical contact when you first talk to him, or you may be coming on too strong.
He should feel like he should be lucky to be in your orbit – not that you’re looking for a guy to make your life complete.
Being a person with a lot of plans and exciting ideas will make you a more interesting, multi-faceted person. Don’t call him all the time, and don’t pick up the phone every time he calls or text him back within five minutes whenever you hear from him, either. Let him see that you have a busy schedule, not that you’re sitting around and waiting for a call from him.
If he thinks your focus is 100% on him, he’ll be less likely to be intrigued by you because he may think he has you in the palm of his hand.
This doesn’t mean you should be deceptive or manipulate the guy; you should just hold back from telling him you love love love love him right away, or you’ll scare him off instead of intrigue him. It goes without saying: if you start hooking up, don’t give it all up right away, either. Make him wait and see that you’re worth it. If you get down on the first night, he’ll have less incentive to keep courting you.
When you talk to him, make sure you ask him questions and that the conversation flows both ways. If you talk the whole time, chances are he’ll find out a lot about you right away, and will feel like there aren’t a lot of things he’d like to know about you.
You can tell him you had a great time talking to him without overdoing it. Let him see that you liked talking to him, too, without making him feel like he can talk to you for as long as he wants any time.