Waving & Raising Paws
When a dog raises their paws, it might mean a couple of things. The first is that they are concentrating or really focused on something. The second is that they want you to pick them up.
Dogs have a number of different ways to communicate with their owners. One of these is when their sitting and they decide to raise a paw. Usually, it just means that the dog is either hungry or wants to get some playtime going.