If your baby is one year old, it is an exciting age. Your baby is changing in lots of ways - in eating, what he wants and how he feels about himself and other people. He pokes into every nook and cranny, fingers in the furniture, shaking tables, wants to take every book out of the bookcase, climbs onto anything he can reach. A baby has to find out about the size and shape and movableness of everything to his world and test out his own skill before he can advance to the next stage, just the way he will have to go through the grades before he can go to high school. The he gets into everything is a sign that he is bright in mind and spirit.
You have probably realized by now that he is never quiet while he is awake. It isn't nevousnes - it is eagerness. He is made that way so that he will surely keep learning and practicing all day long.