Got to talk more to the BB gar....my daughter sometimes know when to say 好嘩, 帶, 爸爸, 伯伯, 媽媽, "marmar" (抹抹) etc....and got to teach the BB first gar mar.....the EE helping me (and us lar of course) has always persistently talking to my daughter, so she can learn and remember which is which lor....try it out lar !!!