Its all about what your needs are, if things dont appeal to you either give them a one off shot and see if it changes your mind so you know for sure your not missing out or just do what you do fancy and forget what others say and do.
I personally love rough play. Hair pulling, spanking with hands or paddles, hard gripping/clawing and a bit of affixiation etc but if thats not your thing then just do what is and that your comfortable with. Cant say the hands in mouth thing is really appealing but gags are a defo x