ALWAYS listen to Trouble Shooter on this IF you REALLY want tips!! He knows what he is talking about ... =) <br />
And yes - you MUST be safe - it is NOT about beating and hurting the other person.
You are expected to submit to his whims, desires and demands.
Rather than find out what being submissive means, I'd be more interested in what is is expecting as a dominant...
Just do everything he says. You should do that anyway.