While one person can apply the majority of the decals, the hood bird requires at least two. The biggest trick to correctly applying automotive decals is soapy water on a clean and degreased surface. It serves as a barrier between the decal's adhesive and the car, temporarily deactivating the glue. This allows you to slide the decal in place without it sticking. Once the position is set, the water solution gets worked out (along with bubbles) of the decal. Spraying a little on top of the decal will also help lubricate the plastic spreader, making sure the decal doesn't tear or snag. No amount of soapy water will resurrect a crease, so be careful. If you do get a small wrinkle, snag, or bubble, don't freak out-there are fixes. But a really bad wrinkle can ruin a decal job, and replacement may be the only option.