The rules are that everyone can put some present in the box for them.

(preferably from something like render-state.to if you want to make sure they will get it, but you can try to describe it maybe I will have it)

If available they will find those presents in the box and do something with them. You can attach some message to your present too. They will read every message and respond but not necessarily obey everything.

Presents can be whatever you like including destructive things or sex toys weapons etc
they think it is a dream so they will not hesitate to do any crazy stuff which can be deadly or harmful (it is not like they hesitate to do that either way LOL) but they will not die until new year and not getting seriously injured in a way to prevent them to use other presents.

Unfortunately for them it's pretty cold and they have no way out besides very painfully freezing to death or dying other way. So they may try to look for some good way to die to escape this situation but not immediately.