There's nothing suspicious about Joker's body language... besides the fact how utterly relaxed she is, practically skipping up the steps and giving a nice big hop at the very top one. It's honestly a little exciting, to have some people show up when her territory has been so empty and quiet.

And, well... There's a reason she can present herself so relaxed.

"Oh, a deal it is!" She looks back behind herself with a large grin, hair swinging weightlessly around her. "Then done deal!" Look, she'll even hold off with the nickname.