How should a 12 year old girl go about flirting?

The proper way to flirt is simple. You walk by a cute dude. You flip your hair laugh a little and wait. If he looks at you say "hi ___ ". If he says hi you talk and become friends. You talk a little more each day and then BOOM!!! The magic happens. If he does not say hi try your luck on someone else if your desprate.