The use of some "special" gestures can possibly have some effect in-game.

On rare occasions, performing a gesture in the right conditions can prompt events that can lead you to new quests or entire areas that contain or reward items.

Make sure to watch out for anything that could be a clue to trigger such events to happen during your exploration.

For example:

Gestures - Claw Flick: Blaidd - Elden Ring Raiders

Gestures - Erudition: Unlock Converted Fringe Tower