J can...

• count to 10 (in both languages, sometimes up to 15)
• sing English songs such as itsy bitsy spider, ABC, row row row your boat, london bridge is falling down
• recite nursery rhymes such as humpty dumpty, hey diddle diddle, jack and jill, baa baa black sheep
• sing a ton of 儿歌 like 世上只有妈妈好 (a big fav of mine! :D), 泥娃娃, 懒惰虫
• recite/sing in cantonese/hokkien (haha!!)
• be very funny - we were in a crowded lift that was stopping at every floor and each time, he would keep saying 'excuse me excuse me' LOUDLY.  He made everyone laughed which is a good thing in the end?! :P