Remove the tac from the GPIO header. Ball it up and save it for the next project, it's served it's purpose!
Insert five tactile switch buttons into the designated spots on the PiTFT PCB. They snap fit and will hold in place. Secure the PCB to a panavise jr and solder the buttons to secure them.
Snip the excess leads from the buttons the PiTFT PCB. These bits are sharp and could scratch the components.
With the GPIO header and buttons soldered, go ahead and flip over the display so the two parts are side by side.
Use your nail or hobby knife to peel the orange colored sticker backing. Remove and peel both pieces.