Similarly, when I showed him to to pull Mega Bloks apart and push them together, he undertook this task with much dedication and precision (a true engineer!). I even tried to trick him a few times by handing him blocks in the wrong position, and he knew how to orient them correctly in his hand so they would fit together. The twins were definitely a lot less interested in Mega Bloks at this age, and were not as good at rotating and flipping pieces as he is (I remember they could only do puzzle pieces that were shaped like circles for a while, and H has already mastered other shapes).
We're continuing work on shapes and colors - H can hand me the shape or color I ask for most of the time. He also think it's funny when I 'make a mistake' and name the wrong shape or color (he shakes his head 'no' and laughs).
Linking to Tot School at 1+1+1=1