DC is just 3 and has age appropriate speech and no Echolalia with us or other family. However I’ve noticed when he’s with friends he wants to impress he will repeat what they say to me (eg my ball’s green! My ball’s green! (When it’s red). Or other random things. Is this a red flag? Or is he just trying to sound ‘cool’? Other social stuff seems fine, don’t really have any concerns around autism.