Determine how high you want to hang the garment on the wall, then place a large garment hook or nail in the wall. If the garment is heavy at all, make sure you put the hook or nail into a wall stud. Simply hang the garment up on the hook, making sure to arrange the garment to show it off the best. You can also display clothing on dress forms or store mannequins, if you can find one. When displaying, try to keep smaller items near eye-level so they can be seen and appreciated.
Larger things can hang at eye-level or above.