My little boy is not so little anymore, 7 months old and 26 lbs.
He loves:
-snow (running, hopping, licking, chasing, eating, peeing & pooping in, etc etc)
-eating broke icicles
-doing tricks for treats
-biting my feet
-biting my hands
-chasing the cat
-barking at the other cat
-chewing up his toys
-gnawing on his nylabone
-sitting in my lap
-falling asleep on top of me
-dog treats
-dog food
-eating human food
-trying to get human food from plate into his belly
-going for walks, long, long, walks
-running off leash and exploring nature
-posing for photos
-nipping the underside of my arms with the front of his teeth
-having his face/head/ears/neck/back/belly rubbed, scratched and massaged
-chasing toys we throw across the room
-shredding paper

He hates:
-anything near his paws
-getting his nails trimmed
-being held in a bear hug for more than a second
-his feeding time being delayed for any reason
-not getting to go with me when i leave the house
-having to stay in the back yard when i'm doing chores outside the fence
-not getting human food
being ignored for any reason at all
-when i try to ignore him and watch tv