When Do Babies Start Waving ‘Hi’ and ‘Bye’? ... It just means the little switch in their brain that connects “hi” or “bye-bye” to a waving hand motion hasn’t been flipped yet.

The same goes for other hand gestures like waving — before your baby can say “hi” and “bye-bye,” they’ll start putting their hand up and flapping it around, loving all the attention ...

Iga Swiatek has commented on the controversy around the hand-waving gesture she has used on court, saying she doesn't do it deliberately. The 21-year-old from Poland waved her arms at net during a ...