How? [He actually has to think about it. 'Focus on where you want it' is advice he can listen to, but he's used to having mana. How do you explain it to someone who isn't used to it..?]

mmm... So, think of your mana as an extension of your will. Shut your eyes, and become aware of all of yourself. All of that put together is your mana pool--and you can focus it by focusing that awareness on certain parts. Take your will, and focus it down your arm, through it, and into your hand. [As he says it, Ed lifts his arm up and makes a gun with his fingers.] From there, think of the gun as an extension of you. A part of your body. Exert your will on it, and will it to work. It should respond to that feeling. At its most basic, that's how you do it. [And he jerks his elbow up, like he's firing the gun.]

T-though I don't know what it'll do yet, of course.