Do not wander off alone! (Safety first.)
Always be with at least 1 and preferably 2 other LARPers.
If you need to go anywhere at any time for any reason, insist that at least 1 other LARPer go with you. Shout “Weeping Angel” if no one is listening to you.
Make sure at least 1 other LARPer, who is not going with you, knows that you are leaving, where you are going, and when you will be back. Make sure this other LARPer heard you and will remember what you said. Shout “Weeping Angel” if no one is listening to you.