I place her blanket on the floor, put two toys around her and sat down to listen. Tillie started rolling all over and army crawling to get to my shoes(tassels!), table legs and bunny toys.
Then she rolled to her side and manged to flip herself back up into a sitting position. She had never done this before.
She then clapped for herself for about 2 minutes.
Oops, sorry about that lens cap. She just moves so much lately.