Thoroughly clean the surface which you will be applying the decal with alcohol and a microfiber cloth to remove any dirt or debris from the area. 

Peel the backing off the decal and align the decal with where you will be placing it. 

Press the top of the decal to the surface and press the decal down top to bottom down the center with your hand, a credit card, or squeegee, then press outward from both sides to secure the rest of the decal. 

Inspect the decal once finished for further air bubbles and use a credit card or squeegee to push them from out towards the edge of the decal.

If your decal came with transfer tape, gently peel the transfer tape from a corner while making sure the vinyl stays down.