What do babies do in there?

Kaydon's been doing alot in my tummy...especially lately. What could he be doing in there? There's less & less room for his growing body, so it could just be that I feel his movements more strongly. But the movements are really funny, like sometimes it feels like a toenail is poking my skin from the inside out. Or sometimes I feel like he is literally tapping his little fingers within my lower abdomen...it's so cute. When I look at newborns, I realize they are all very active and move ALOT! So KJ, I'm sure, is just getting ready to do the same outside the womb.