RPing as First Year
After demonstrating the Sneezing Hex, Prof Cazarez had the students practice casting it. Hengist was surprised that he wanted the students to cast it on themselves, but he was slightly put at ease when he saw how harmless it was on the student it was cast on.
With the lecture complete, the Prof. set the students to work on learning how to cast it. Most of the students started on the training dummy, not wanting to cast it on themselves without knowing they could cast it successfully. Hengist agreed with this line of thinking and waited for a training dummy to open for use. While he was waiting, he was practicing the wand movement and incantations. Separately, of course, to avoid any unwanted castings. "Steleus. Steleus. Steleus." Hengist repeated, just under his breath. Then he practiced the wand movement. Remembering what the Professor did when he cast the spell and the motion he described as 'picking your nose', Hengist mimicked it.
After a few practice movements, a dummy opened up and Hengist felt confident enough to give it a try. He took position across from the dummy and motioned his wand as if he were flicking a booger and strongly said the incantation, "Steleus!" Small green sparks petered out weakly from the tip of his wand. He wasn't sure why it didn't work, but he assumed it was his usual issue of not imagining the desired result of the spell clearly enough. He tried again with more feeling, motioning his wand in the correct manner and declaring strongly, "Steleus!" This time, the spell worked. Green rings rushed out of his wand and hit the dummy square in the chest.
Now it was the part of the lesson Hengist was dreading: casting steleus on himself. He walked away from the dummy to let another student who was waiting try the spell and went to a relatively empty part of the classroom. He had been warned by a friendly Ravenclaw second year to bring a handkerchief on days that he has History of Magic, but he wasn't told why. He now appreciated the advice and was glad he heeded it. He pulled out the cloth, keeping it ready for the inevitable nastiness, and mentally prepared himself. Turning his back to the direction that most of the students were, he pulled out his wand, performed the spell and, sure enough, started sneezing uncontrollably. Very glad to have a handkerchief, Hengist burred his face in it until the sneezing stopped. Wiping his nose, he beamed with pride. Yet another spell that Hengist mastered fairly quickly.
Professor Edit: Spell learned!
Heroes don't exist and even if they did, I wouldn't be one.