Kroten has been talking a lot to his Uncle Jamison, who has been looking at buying a motortcyle. Every time we talk to Jamison on the video chat Kman puts his hands up and revs his bike. He is sorta going through a bike phase right now. I am just starting him early. (I, as in Jared.)
It is hard to tell, but in this pic, he is indeed making the vroom vroom sound and revving his pretend motorcycle with his hands.