Make sure that your Oculus Rift is connected to your computer. You will need to have two Oculus sensors plugged in to pair your Touch Controllers.
Make sure you have inserted batteries into your two Touch Controllers.
Open the Oculus application on your computer.
Find and select Devices on the left hand side menu.
The Oculus that is connected to your computer will appear at the top of the Devices page.
Scroll down to and select Pair Device.
Select Pair Touch
This will initiate the Touch pairing sequence.
Starting with your left Touch Controller (with the X and Y buttons) follow the instructions on screen. A set of three green ticks will appear when the device is connected.
Click next to pair your right Touch Controller (with the A and B buttons). Follow the instructions on screen.
Your Touch controllers will now be paired.
*Note: you will need to go back and remove your Touch controllers the next time you want to use your Oculus Remote.*