I knew I'd picked up 'try it' on here somewhere. It was this advice from @keely in this thread 2011: "Going back when advantage doesn't accrue is one of the reasons I don't yell "play" to signal advantage, but rather "try it", "you've got it", etc. "Play" is intended to signify that no foul has occurred (sometimes in that no disadvantage was caused) and I most certainly won't be going back to anything. The words also seem to help the thought process for me as well - if a player is having to work awfully hard when I'm telling them to "try it", I shouldn't be making it so hard on them. Then the players aren't surprised when I go back to the initial foul because, after all, I told them we were just giving it a shot."