How do I restore hand gesture emojis in FaceTime after iOS update?

A fee months ago, when using FaceTime, if I made certain hand gestures it would generate emojis which appeared on the screen to me and the others. This function no longer exists. I have googled it and what I have found online does not correct this.

Fireworks, or hearts, or hand waves would appear depending on what I did live with my own hands.

[Re-Titled by Moderator]