If bubbling on ya, then I'd use the emery board to LIGHTLY "scuff" the surface of your nail up prior to application. That should help w/getting them to stick securely to surface of your nail. Also work from center and press GENTLY and SLOWLY outward. That should help prevent air bubble's. (The thinner the material-the easier it bubble's. So, have to be slow & patient when applying some of the more delicate material. The "Glitter" design(solid color's)the material used is VERY thick. Therefore is much less likely to bubble up on ya.(The Glitter ones stay on forever too-it's thick and durable stuff. Probably a good style for first time user to make application easier.) It just takes trial and error- practice will make perfect!