Speaking with ET at Comic-Con International in San Diego
, California on Thursday, the 24-year-old actress revealed that sometimes they need to conceal their identity at the massive fan convention by wearing a mask.
In fact, the 22-year-old Hutcherson even showed off a picture he took of himself standing in front of The Hunger Games booth while rocking a mask and going totally undetected.
But pulling one over on convention-goers wasn't where Hutcherson stopped. No, he wasn't going to be happy until he scared the daylights out of his co-star.
"He burst into my room and scared the life out of me," Lawrence recounted, adding the somewhat gross detail that the mask make Hutcherson super sweaty.
"I was about to go out the door and we're both going to the same event. I was like, 'Are you going to shower?'" Lawrence said, laughing. "I don't think he did."