Lower leg popping out during posting trot?
I went to the barn early the other day, and this was my 2nd time at my new barn. I made a friend (yay!) who is my age and we had our lesson together. Now, I'm not going to go up to her and say "you're doing it all wrong, you're supposed to post like this and not like this" and start hashing her about it.
I noticed that when she posts, when she rises her lower leg pops out. Should I tell her? I don't want to come across as a know it all or rude, I just want to help out. Should I say anything about it? If so, what should I saw? Thanks!