[That's the point where Stan remembers that oh, right, other people are there, and he wipes at his face and sniffles loudly.]

I-I'm not cryin'! A bug flew in my eye, that's all! None of you saw anything!

[With that completely believable and plausible story out in the open and all the tears out of his face, he's going to force himself to be over it. They did have other reasons for coming here beyond crying over Soos' future child.]

Yeah, we've been looking for you kids all over.