Stage Hypnosis Question?

Hey everyone and thanks for looking at my question. I am very well versed and I have learnt from many videos and books and ahve hypnotised several people around my school and different friends. I am just wondering if I need to be certified in some way to actually perform stage shows. Is it legal for me to just start doing them? of course I wont be doing hypnotherapy or regression but rather just standard fun hypnosis suggestions. Just curious on what the policy is thanks guys.