So my ds2 is 20-months-old and is a late talker - he has about 5-6 words or sounds for specific things so far. (His brother had just one word at this age and a language explosion when he was 2 so I'm not particularly worried about it.) Of course, one of those words is 'no'! :) But he uses it for yes and no, which is really confusing!! Any suggestions on how to help him embrace the word 'yes'?!