Quote:
Originally Posted by
cake.ninjak 
"Now then, before we get into the theory behind non-verbal spells, which by the way, some of you older students may be able to try today, let's hear some theories from the class. Tell me, in what instances might non-verbal spells be useful? Don't forget to raise your hands!"
"Oh, and the lesson has started now, so please do cut the chatter."
Ian pulled his wand out and pointed it toward the blackboard, ready to write down all of the suggestions people were about to give.
Cela raised her hand.
"Useful if you are feeling too lazy to talk." Cela suggested, at least thats what her brother did. "Or to use just because you can and to show that you can. Obviously duels and stuff too, particularly with duels you could be sneaky with combinations and say some harmless sounding spells out loud which aren't all that formidible on their own, but the spells you cast non-verbally change things in ways that are surprising enough to give you an advantage."
She placed her wand down on the desk and trapped it there with her free hand, the other still waving around until she realised she was done talking.