My son is 17 months old. He doesn't point to things that interest him nor does he speak. He has only just started pointing to things in books when asked.He does babble but I don't feel like he babbles to us. He sometimes claps his hands and does hi 5. He also puts his hands out to be picked up. However he doesn't nod or shake his head for no or yes. He also doesn't copy actions me and my partner do for example wheels on the bus or try to copy sounds we make. He does make eye contact but I just feel it's maybe not what would be expected. He has been walking since before 1 and I've never noticed him walking on tip toes. He doesn't seem concerned by lights,sound or texture and he eats different foods well. Has any one else ever experienced this and what was the course of action/ outcome