My first ever colored comic page! Coincidentally, there's an actual Teen Titans episode with that title, but this pic has nothing to do with it.

Robin is always obsessed with Slade's identity, and several times has come close to unmasking him. In this pic he tries to do so again. He makes the first move - the way I pictured it was that Slade's not really as interested in unmasking Robin, he just wants to make it clear that he could if he wanted to. As Robin grabs Slade's mask, Slade grabs Robin's mask not out of curiosity, but to stop his intentions. Like two guns pulled out at the same time. They both know that as soon as one of them makes a move and uncovers the other person's secret identity, they lose their own. So Robin's forced to give up once again, and as he lets go, so does Slade. Some sort of a moment of mutual respect, mixed in with fear and hatred.