I see nothing wrong with shaking hands with your opponent and the other coach, and I even shake the official's hand as to say thanks for officiating and I respect the outcome of the match albeit whether by fall or Double OT or a decision on a questionable takedown, they have a job and have done it to their best ability, I show my respect by shaking their hand. other people's opinions differs, those are mine.

Alex

I also do it by joking with them in the lockeroom while doing skin checks, and also by making a freshman bend over in front of him (Ron Haag) right after he said not to do it, It was great!