I don't expect men to be too savvy about the 'correct hand', but I do think that if you're right handed it's supposed to go on the left hand. If he's left handed, then maybe he just prefers it there. Honestly, he's wearing it, and that in itself means something. It means he took a gift from you and cares enough about its meaning to wear it, left hand or not. I would not take it as a bad sign, and more of a good one.
to hold her hand.
The Boy puts his hands on the girls waist, and the girl puts her right hand on his back, and her left hand on his left shoulder. If you are at a school dance the guy puts his hands on the girl's waist and the girl puts her hands on the guy's shoulders.
He wants to have sex!
it means your getting a hand job
it means he loves you and he wants to kiss you
It means he loves you.
It means she can't see with her right eye.
He puts his hand over his heart.
it means that he's asking you to dance. usually he is expecting you to take his hand.
You need a boyfriend in life.
It means she is coming on to him.
I depends, if you don't like him pull your hand away. If you like him keep touching him...and not just his hand