Simon focused on the train table, and anything else that had wheels.
The kids did a good job playing and we didn't have to watch them too closely, which was nice. The most exciting thing that happened was that a gust of wind came and overturned Simon's plate with his cake on it. I'm sure we'll be hearing about that for days. We got him a new piece of cake, so he didn't cry or anything, but it was quite surprising.