At thirty-seven weeks, Xander is: trying blueberries; waving hello and goodbye sometimes (he’s definitely not consistent with it by any means but he floored me at the library the other day by waving when the librarian said hello to him); enjoying playing standing up; finally becoming fairly consistent with his napping routine; figuring out how to go from a crawling position to a sitting position and back again; and loving bath time with his big brother.