"To a fresh start!" Kakashi nodded and gladly clinked their tumblers together across the table. He probably could have drank through his mask - he wasn't above that, after all - but instead he waited till Tenzou dipped his head and looked away before slipping his mask down to bring the sake to his lips.

He took that moment to tend to his meal, deeming a few cuts acceptably grilled before popping them into his mouth and chewing thoughtfully.
Typically, he would have felt the need to play a furious game of peekaboo with his mask, but Tenzou had never been one to stare and had therefore acquired Kakashi's trust in this - his most self-conscious - regard.

He wouldn't push the name thing for the time being. It had to come naturally.