just don't be a snob about it. but sometimes no matter what, a stylist will feel like you're overstepping your boundaries, because i'd say the majority of stylists regardless how much you're paying them don't expect someone to say anything if they're doing something they don't like. Like everyone i know who go gets a haircut hates it afterwards..but it's like , why didn't you tell the lady you thought she was cutting too short. Don't even ask and say 'can i make a suggestion' because that can come off kind of rude, just say 'could you not put the blow dryer on such a high heat', and say it in a kind of normal tone. don't raise your voice or anything because you could give off mixed signals especially if you and your hairstylists dont know each other well. But i say regardless especially with AA salons it's going to come off as probably rude if u tell them to not do a certain thing
I know people don't want to come off rude or mean..and others don't want to say anything and let them do whatever they want but it can be one of those situations: you're damned if you do, you're damned if you don't