Tricia walked into the classroom and sat down. After a while of staring out the window due to pure boredom, the professor began the lesson. She listened with rapt attention to what he said, before she pulled out her textbook and read about the cheering charm. After she'd finished reading, she shut the book and looked up as the other students started to practice.
She too, stood up, and walked over to the dummy. She pulled out her wand and pointed it at the dummy. Doing the required movements and saying the word, she soon sent the dummy into fits of giggles and was pleased with her outcome.