Crouching in Fortnite for Xbox allows players to lower their character’s profile, making them a smaller target for opponents. It can also be used to move stealthily, allowing players to surprise enemies or avoid detection.
To crouch in Fortnite for Xbox, simply press and hold the left stick button (LS). Your character will enter a crouched position, and you will move more slowly and silently. You can release the LS button to stand back up.