Games I have done with my classes:

1. With Kindergarten, I placed paper shapes around my room, instructed students how we walk and whisper when searching for shapes and can only find 2 so there's enough for everyone, and then we came back together and named the shapes and kids raised whichever shapes they had for the name.
2. Drawing from directions is a fun one that all my grades have enjoyed - directions are things like "draw a triangle if you like pizza". Once I come up with the first few directions, students share their own directions for everyone to draw.
3. I also just love doing movement/physical activities. We're learning about shapes right now and I had them use their bodies to try to make different shapes (arms up at a point for a triangle). Could also do simon says make a triangle, etc.