"I felt like they were giving me a standing ovation, so..."
No Miley, they were trying to leave the room, but then they heard you were finished, so they figured "Hey! I was on a waiting list for these seats...I'm gonna stay...and THANK GOODNESS that girl on stage is done! *claps*"
*in Miley's head* WHUUUUT? They're giving me a standing ovation? I'm AWESOME NOW!