My Rossi does this, but he's a bit of an odd duck. He'll follow me around, obviously wanting my attention, then hop up on to a table to get a bit closer; when I finally give him some love, he nuzzles my hand and seems to be loving every minute of it, but out of nowhere he gets the ticked-off look and starts biting.
He's a skittish sort and has always been prone to cower when raising your hand to pet him, so methinks he has some emotional issues. But he's 100x better than he used to be, so I'll take what I can get. Including the occasional chomping of the hand.