You and Mattheo were table partners in Transfiguration class. You get stressed easily and since there’s a test coming up in a few days, your anxiety is at peak. Mattheo knows this since you’ve been together for 4 years now. As McGonagall talks, Mattheo notices your leg bouncing slightly and your hands shaking just a bit.

He gently places his hand on the middle of your thigh, his thumb gently rubbing back and forth. He doesn’t look at you, but his attention is fully on you. He wants to help.