Part 1 and Part 2 to follow the trail.
Close the Deal. Being interested in him will actually cause him to think that you’re interesting. Who doesn’t like being the center of attraction? Ask open-ended questions, get him to share information about his work, hobbies, things he likes to do, then come up with a casual outing you could do together. Just make sure it’s a specific event or day. That way, if he’s not interested in pursuing something with you further, he can beg off with an excuse and you can simply smile and say some other time. FURTHER TIP: Make sure you’re not “boring” him.
Now that you’ve just developed an important social skill, get out there and flirt. Never feel bad if you’re turned down or something to that effect, that’s just part of dealing with people who really think they are hot and attractive. Just shake it off and take it as a good rehearsal.