My son is a very active boy. He runs around getting into places in the house he wouldn't normally be allowed to get into. He is always moving around and playing with something. The only time he is still is when he is focused on something. Whether that's some toy that requires him to exercise his fine motor skills or hand-eye coordination, to even when he is watching something on a screen, he is captivated and focused.
I love seeing him with his friends and how they all became focused on the movie we played for them at a recent get together with some long time friends of ours. He's growing up so fast.