We play blocks. Today we built a stool out of blocks and she first tried to stand on it and when that didn't work she sat on it. :)
We also play the piano. She is getting really good! :) She knows how to start the demo music and stop it. She is really good at the volume cranking, and she also can turn the piano on and off.
Last but not least we play with our tongues. This simple activity can last for a good thirty to forty minutes!