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
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!