Experienced, conscious... also willing to potentially demonstrate what a safe restraint would look like.

( certainly not an entire act, clothes can be on for all of it )

Like a wrist in a restraint for guidance, potentially safely tying it if you don't have a standard restraint.

( says she who's going to use scarves as blindfolds soon but that's very different to her wrists )

Some people trying something new wouldn't have good equipment, that's who might most need advice. And good aftercare.