The concept of alive cursors for player lobby.
Each player's cursor is in world space so that virtual hands create an illusion of touching the environment.
Players can select emotes from emote wheel.
The position, rotation and animations are replicated between players.

This rough demo shows Photon Fusion's networking between two Unity editors:

demo1.mp4

demo2.mp4

Attribution:

https://sketchfab.com/3d-models/hand-clapping-animation-3d-05178acf89ec4b2a9796fb93249183dc