Before!
[ There's that awkward moment when Peggy arrives early for class and it's just Sam, Peggy and a handful of other people in the room. And while their kiss had been purely professional, there had still been a kiss. Even so, she squared her shoulders, put on her smile and walked up to Sam with a hand extended in greeting. ]
Hello, Sam. I hope things have been going well with you lately?
[ she was raised with manners. The formalities must be kept. ]