baby playtime

Caitlin
Ftm here so I'm not sure what exactly is "playtime"..  when baby is awake I put her in her gym and she bats at her toys that hang. I talk to her and move her legs in a bicycle motion. But then that quickly she's asleep again or is hungry. And we also try tummy time but she's lazy and just lays her head down lol 
What else could I be doing?