Some tap shoes come with taps already installed, while others come without taps. Though this practice might seem strange, it occurs because some tap dance professionals are very particular about the brand of taps they install on their shoes, as different manufacturers create taps which produce different sounds. You don't need to take your tap shoes to a professional shoemaker, drop them off, wait for him to install the taps, and pay the price that he determines. Instead, you can easily do it yourself in 5 to 10 minutes.
Turn over one of the tap shoes so the sole is facing you. Place the toe tap over the toe, so it lines up with the holes at the toe of the shoe.
Insert the first screw into the top hole. Holding the toe tap in place with one hand, screw in the first screw with your screwdriver. Make sure you twist the screw in until it is very tight. Repeat with the other screws.
Hold the small heel tap against the heel and line it up with the hole or holes (depending on the style of shoe). Insert the first screw into the lined up holes, and screw in as tightly as possible. Repeat with other holes.
After securing the taps to the shoes, put them on and perform a couple steps to check the tightness of the taps. Take the shoes off and examine the taps. They should still be tightly secured to the bottom of the shoes. If they've loosened even slightly, tighten them with your screwdriver.