As Carissa enters the room, Pilar clears her throat from a lurking corner near the door, and then hands Carissa a very nice-looking piece of cake, on an elaborate plate. "Surprise!" Pilar says. "This is your congratulations-on-seducing Keltham party! Have some cake."
All other girls present are giving this exactly as much of a strange look as you'd expect in Cheliax, which is to say, it's not at all dramatic or exaggerated, but it's definitely detectable to another Chelaxian.