My DD1 was slow to get moving but very social from a young age.
She waved and clapped at 6 months.
DD2 is a faster mover, but she still doesn't wave, clap or point. she can clap, but won't do it if we encourage her.
I know developing reciprocal social skills are a marker for some development problems by, I think 12 months? Haven't really been worried til now but she's one next month and I thought she'd be doing one of these things by now.
She is otherwise very social though - smiles a lot, plays peep-o with a muslin or blanket, responds very well to attention.
Is it really a problem if she's not pointing or waving by 12 months?