S.D.
have her wear a undershirt tank top that will secure everything as she tends to pull the outter shirt. my daughter has nervous habits too......it drives me crazy. I have nagged and tried to control it so much over the years and it just makes it worse on me and her hearing me nag. So as much as I want to tell you too stop nagging her and telling her to stop and have the manners ..... it has been difficult for me to even do that. So I continue on and on and on not knowing how to make her stop. So instead, if she has a undershirt or something that keeps the package in..... the pulling of the shirt will just be an annoying issue but nothing will be seen.
I am sorry I have no other advice for you. :0(
*** Wonder if we video tape them and the behavior, they can see it and maybe they will stop ????/ hmmmmmmmm