To hang the signs, use nails or screws to fix the sign against the wall or surface. There may be holes pre-drilled into the edges of the sign that can be used for nails or screws. Or, the design itself will have holes or openings that can be used to place the nails or screws in to hold the sign up. Figure out where you will place the sign and what kind of wall you will be hanging the sign on. Take into account how heavy the sign is, and how much weight the wall or surface can take, which  you are hanging the sign on. Realize that sometimes drywall may not be able to hold a heavy sign.