need advice for a master a novice

[The slave]

hello everyone I would need advice for some of my friends who discovered my passion for tying up, and in fact they too would like to be initiated into our passion but above all as a master in fact they want to become my masters lol, and since they've never tied up or even gagged people before they don't know how to go about it, so can you please give me as many ideas and advice as possible 'they can learn their master roles at best, do you think that before dominating me it is necessary that they find themselves powerless to better understand what their slave feels? here is do not hesitate all the advice all the ideas are good to take, do not hesitate to show photos or videos to better explain to us, here is thank you very much