Always a tricky situation for either party.
Is the person sincerely trying to help? Is the other party receptive to help?
My wife and I are more advanced in our community. I'll get asked to dance at community centre situations often. I'm never quite sure if I'm being asked because the other party wants feedback because they know I'm a teacher. I try and handle it by asking first if they want feedback. If, yes, OK. If,no, I keep it to myself.
Same sort of situations occur elsewhere:
My wife taught visually impaired people. They resent it when people talk to their seeing eye dog first.
Physically disabled people resent it when you open a door for them without asking first if you can open the door for them.
Thing is, the motivation of these helpful people is honest.
Now if it's just a person who criticizes with out asking then just tell them you'll ask your teacher about it.
OB