I think it's cute when my corns want out. Neo, the hyper one, always stretches his body right up to the top of the tank and waits there expectantly. When we try to put him back, he keep gunning it for the top. Sometimes it takes us 4 or 5 tries to get him back in.
Then there's Morpheus, my huge corn snake. He's a big suck who seems to genuinely love human contact. When he's out of the tank, he tries to get as much of his body in contact with ours as he can.... even when he is feeding!!! I have a picture of this in my gallery. It amazes me.. the other corns don't want us touching them at all when they are feeding. Morpheus even let me help him with his mouse when he was trying to take it down sideways.