The adhesive is extremely tacky! You only have one chance to align the grip face pad properly to the base.

Carefully line up the grip face pad to the base, ensuring that all the edges line up.

Press the right edge of the pad (with exposed adhesive) onto the base.

Pull the adhesive liner from behind the pad and remove it to expose the remaining adhesive.

Look at the liner you just pulled out and make sure it hasn't ripped and left some of the liner on the back of the pad.