I believe that if you are at a camp and the coaches are a part of the camp (instructing, speaking etc..) then it is ok. Talk to them, if they can't they will tell you so.
David W is correct.. my son just attend Headfirst and the coaches in uniform working the showcase could talk and they did talk... however my son saw a few coaches he knew that were there just watching and they could not talk to him
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .