hmm, other than just telling them straight, but without going over the top (ie telling them you want to marry them and have their babies), i dont think there is a way. hehee if u find one tho, please tell me!!
Make friendly eye contact.Smile a lot.Laugh at his corny jokes.Touch him a lot.Act interested in what he talks about.As a male,that's what gives me a clue that a female likes me. ~peace & love