"I've been known to use that kind of thing myself," Dick agreed, keeping his voice equally low. There were times when him and Batman worked in perfect tandem with each other, but there were times when hand signals were needed as well, so they had a system in place. It hadn't been something he'd used a lot with the team, not when they had their mental link, but that didn't mean he forgot it all.

"We should compare notes, figure out a few for emergencies." he nodded slightly, eyes lighting up when his own words gave him an idea "Speaking of notes...how are you with codes?"