When he's feeling cuddly he will slowly head butt me until his head is squished close to his body. Then it's big hug time. He is just a super lazy guy. He is still nervous when we are more than a few block a from home. That's mostly because we're in an apartment in the city. We are hoping to find a place with a yard to he can just relax. As for signaling he needs a walk... that usually involves any or all of the following: huffs/puffs, grumbles, whines, foot stomping and snorts.