Plus you kind of go into a shock mode and don't believe that it is really happening. I have never " met" her like one on one but I have seen her concerts first row. ✊✊✊✊
Everyone is saying "how can they be sooo calm" the point is that once you are in the presence of a celebrity, you toned it down to be respectful and courteous . Can you imagine is everyone would be screaming , gaga would get soo tired plus annoyed