Use the smaller end of the 2-hole metal punch to punch a 1/16" hole near the top of the blanks. Be sure to center it, so the earrings hang properly.
Clean the blanks with Penny Brite to remove all oils.
Optional: Spray a light, even coat of Klyr Fire on the blanks.
Sift a light coat of enamel in desired pattern onto blanks.
Use locking tweezers or enameling spatula to carefully transfer a blank to torching basket (in tripod), and torch fire.
Watch closely: when the enamel begins to melt, you'll see a glossy "orange peel" stage where the enamel beads up before slumping to a smooth fired sheen. Fire a bit more, but don't overheat - some colors will scorch.
Designer Tips, continued
Use fiber-grip tweezers to carefully grasp fired piece by edges (don't damage the fresh enamel). Set aside and allow to cool in a warm pan of vermiculite.
Note: Because you are enameling brass and not copper, colors may not always turn out as expected. Many turn out peach after firing. No worries, just come back over the top with with another thin layer to add some color back onto the blank!
After cooling, scrub firescale off back with Penny Brite.
Wire wrap a loop to the top of a cooled blank. For instructions on making wire loops, see Jewelry Basics 101 (PDF). Add bead, and wire wrap top loop.