Doc can hear the fireworks behind him, over the lake, but he doesn't turn his head to look at them.

Instead, he does something he would definitely think was a bit too forward in any other situation.

He turns his head ever so slightly and presses his lips against her cheek. It's a very brief kiss, but it is a kiss nonetheless. He doesn't linger -- he'd be stupid to linger -- but he does turn and stand beside her to look over the lake at the fireworks, his fingertips lightly brushing her hand in the process.