Nathan returns from the office, where he's turned in the night's take, and grabs a bottle of whiskey - not the best stuff, but palatable all the same - on his way to the table. The tired's really setting in, and he contemplates calling a cab when it's time to leave. Might be the wisest thing to do anyway, tired or not, for the next little while.
Sinking into the seat, he lets out a small sigh then reaches for the glasses and pours them each a drink and smiles at Kate. "Cheers."