Errr...
Grimnir glances around the building, seeing as he had prctically just purchased it, it seems like a poor idea to destroy the place, but if he was going to be teaching anyways, he's going to be able to try out less.. Destructive things anyways
It works best with an opponent, but I suppose I can show some of it.
The man takes a deep breath, tying a thin, light-blue scarf loosely around his shoulders so as to let it flap in the oncoming breeze, before he beigns. The man starts simple, making large, sweeping motions with his arms as he takes a few steps to the side, soon, the dance begins to pick up, with Grimnir making a short hop and spinning a full 180 in the air, right leg extended so as to make a kick possible, before dipping low to the ground. A faint breeze can be felt around the room as his motions begin stirring up the air around them. From his position low to the ground, Grimnir reaches out arm out to his right side, using it as a focus point to pivot around his imaginary opponent in the middle of the floor while getting to his feet in one more large, sweeping motion. Once he does, the man pivots on his right foot, arm extended both to lash out at his enemy, and stir the wind up further, resulting in a slight chill as the wind begins swirling around the room, in spite of all the doors being shut. With that, Grimnir begins moving faster and faster, much like the winds of a tornado, he constantly moves around his would-be opponent, bringing the air in the room higher and higher, after a few more circles, his scarf begins fluttering wildly in the breeze, as no doubt some of Alice's loose clothing would be too, before Grimnir suddenly stops, allowing the wind to begin dying down slowly without his agitation and guidance
I hope that was enough of a demonstration for you. Move too much faster and I risk breaking the mirrors all around the room.
Grimnir grins and chuckles as he looks at his own reflection along the walls
that would be like, seventy years bad luck at least. And trust me, when lady luck's got a grudge against you, nothing's going to work out right