Went to the LEGO store yesterday with DS5 and DD22months. I pushed DD up to the play table in her stroller so that she could stand on it because they didn't have a stool. I just wanted to keep her occupied while I browsed. She demanded the LEGOs of girly colors and we started passing her some of the regular rectangular bricks with the 8 bumps on top.

Didn't she start building her own tower? She was putting them together by herself and all in all, the tower grew to be well over 50 pieces. The most impressive parts were that she did this for at least 15minutes of intense concentration; she would dig through the big bucket of random LEGO pieces and pull out the exact size she needed, and when she didn't have any more of the 8-bump pieces (there's probably a LEGO term for that), she put two 4-bump pieces together.

laugh