In the first part of the story arc 'Show by Lina and Rylai', go to the bathroom, then click on the sink. Take a photo shoot with Higgs. Then you can do what you want, but in the second part of the show (when Patt and Matt come to the tavern), you need to go to the bathroom after the cooking contest. Then you could click on the sink again. After that, you'll get a scene.