[header] How to apply decals [title] Choose a flat surface to put your decal on. [step] You can put your decal on a wall, glass window, painted wood, the outside of a vehicle, or another non-porous flat surface. Avoid porous surfaces made out of things like brick, cement, and leather, or your decal may not stick properly. 
[title] Avoid applying your decal in extreme temperatures. [step] Put your decal on your chosen surface when it's between 50-90 ° f (10-32 ° c) outside or in the room you're applying it in.