I had to laugh at Silex's post about cooking... and although I would agree... I do think greeting the guy with a full-on four-course meal right away might be a bit too strong, since you said you want HIM to do the pursuing... (Hey guys, is it too much to ask you to cook for us sometimes???) Nothing says, "I'm interested in you," like garlic bread and a big meatball... just kidding.
If I'm interested in a guy, I will make an effort to talk to him, ask him how his day was, or if he saw any big games over the weekend (if he's a sports fan--which is another point of interest--ask him what his hobbies and interests are, etc.)
However, I do realize that this is the same approach one would use (theoretically, I guess) to also just get to know someone as a friend, so... how does one show an interest in someone just as a friend and not let it be misinterpreted?
I suppose that's another thread entirely altogether. (I for one try to play it "safe" in either situation... I'll say something like, "So a friend and I were talking about relationships the other day and this topic came up..." and then ask him his opinion about it... so that I can try to get to know him as a friend first and if that works out... well... I guess I'll have to ask for some advice myself if I find myself at that level with someone anytime in the future.)