"Of course you can" Dorians words appear out of nowhere in reply to Alex's thoughts regarding the cigaret, Dorian must have seen the look in her eyes as he seemingly appeared out of nowhere behind the bar. 
He raises his open palm towards Charlotte signalling he wasn't interested in a coffee but gave her an affirmative nod with a slight smile for the good job she was doing.

Shuffling about Dorian removed two elegant wine glasses from somewhere hidden beneath the bar.
Then with a polite bow he greets Cash. "It's on the house my friend." He says ensuring the others heard him before hastily making his way back to his office, glasses in hand.