I wonder, about what age babies start to participate in games and point the right answer?
Every kid will be different of course but from my experience I started showing words with YBCR at 3 months and by 6.5-7 months she was choosing the correct card out of two choices. It was hard to believe at the time but over the next months it became more and more convincing.
It varies widely! Even between 3 of my own children it was very different. My first one was able to point and participate in word games at about 7 months old. My second one was very early talker and he never pointed but said or signed the right answers… when he wanted to :yes: But he would not participate in games showing correct answer when asked even now at 3 yo My third one would not point or say at 12 months, but he will look ( very obvious especially when we sit next to the mirror and I can see him better that way) at the right word. So each child is very individual!