I act like cat with my cat. I use his body language and I play with him by wrestling him with my hands (yes, I have scars all over), running, hiding behind things with just my eyes peering above. I like to nuzzle the cat with head like a cat nuzzles. I strongly believe the cat himself likes me a lot more because of it.
You can "kiss" a cat by blinking slowly at them (particularly if they're doing it to you), and opening your eyes wide suddenly is a signal to play.