M is crawling and B loves it. This is one of their favorite games right now. B opens all of the doors on this toy and then M will close them. The play goes on for awhile until one or the other finds something else to do. But while they play they giggle - alot - and it is such a nice sound because most of the time the noise from sibling play is bossing, screeching, tattle-tale or yelling. So thank you ladies for the reprieve this morning.