Drunk and in far too good of a mood, he's lost his ability to make rational decisions. For example, remembering he has a wife. He'd been at the bar for most of the night, but while walking to find a bus to take back to his hotel, he comes across a club.
Bored and not yet tired, he wandered in. It was mostly full of young men and women, decades younger than himself. He watches the show you and your coworkers put on as dancers, eyes following you as you got off stage and walk over to the bar for some water.
He slides over to you with a bashful grin, voice loud and husky. "Heeey, beautiful!" He hiccups. "You were amazing up there! You looked like uh, like a uh..." He trails off, scratching his chin. "I have no clue. But you're a hot one, that's for sure! Can I buy you a drink?"