Quote from Lily in Swarley
Lily: Why didn't you call me? Robin: Was I supposed to call you? Lily: Yes, about the whole Marshall dating another girl thing. Robin: You said you were fine with it. Lily: Yeah, in front of Ted, but then I shot you a look. Robin: What look? Lily: This. Robin: That doesn't seem like a look. Lily: Yes it is. It means, "I'm upset call me later." Robin: You should have pulled me aside and told me what the look meant. Lily: If I pulled you aside, I wouldn't need the look. Robin: Well, maybe if it was a more distinctive look... Lily: Okay, the look isn't important.