Simply spread the gel over the nail bed where you want to place the decoration, take your time apply the stones/gems it only sets when under the UV or LED lamp.
Once you happy with the placement of any decoration, cure under the lamp for approx 60 seconds.
The nails stones not only are fixed on place very securely but they also keep there shine there is no dulling from this glue or powdery residue like normal nail glues.