Just one, the infamous ‘Will Wheaton’ rule.
‘Don’t be a dick.’
However, I really can’t give you good instructions without knowing more about you, so dare coming off anon so I can reply or send you a message.
So, making such assumptions as your’e a girl and you own a vibe…, your task is to tape (I advise shaving first, duct tape is best) your vibe to your clit, set it on high, and keep your hands above your head (simply restrain them with more tape or just holding them there, making sure you can get free if you need to) until you’ve had three orgasms, the vibe doesn’t come off or get turned down once.
This might be overkill