Puck had halfassed the hell out of this, and was dressed the same as he always was (much to his nana's dismay), but of course he was still confident in his looks (dressing up nice wasn't his thing).
Aaand then there she went, with rapidfire questioning of proper farewells-in-front-of-parents etiquette. Frankly, he didn't believe that should ever be an issue because your parents and the chick you're boning (or trying to) may as well not be in the same plane of existence much less the same room, but whatever, he'd accepted his fate. "You think too much." Holding Rachel's face, he kissed her - actually very chastely compared to his usual standards, but spent just a smidge longer on it than was necessary or likely appropriate.
When his mother spotted him she blanched somewhat, and Sarah burst into embarrassed giggles, but Nana Connie shared none of their shyness, bellowing with a cheery laugh "Well, hurry up, Noah, we don't have all night!"
Puck raised his eyebrows at Rachel, considerably prouder than he should be. "So... Talk to you later?"