Of all things, a dress! Did she expect not to get wolf-whistled? Sorry. It's a whistling kind of night. Carols, mostly, until he's about three shots into the "drink" he brought and passing by a pretty lady. Blonde is his favorite, even! You're seriously tempting the fates here, and these fates aren't exactly known for their spectacular self-discipline.

So Party Poison whistles as he wanders by her, pauses just before he can actually pass her by. "Bless me, Agent Carter! If that ain't a fine ensemble."