Our youngest kitten dominates our home since his arrival and I realized that he is in a quiet, more demur personality when he has a few minutes to himself outside away from everyone else.
He is extremely energized by witnessing all family interactions and activities and his favorite activity is challenging our old twin Turkish angoras for alpha male. It goes on much of the day. If the kitties are relaxing or seek attention from me, he jumps on them and chases them around the house until they hiss and resign themselves.
I got him a mouse toy and play with him a few times a day to help him get some intense exercise. He loves it so much that I have to hid it because he jumps, leaps, and chases this mouse til he is out of breath.