Hang suet feeders on or near a tree, on a wooden post, or perhaps from your seed feeder. It is best to keep suet in shade so that it doesn't melt. Keep it high enough so dogs can't reach it. Add a bird bath. Water attracts birds for drinking and bathing and adds an interesting focal point for fascinating scenes of bird behavior.
Good sanitation helps.
Keep bird feeders clean and disinfect them occasionally. A solution of one part household bleach to nine parts water is convenient and works well for this. Periodically sweep or rake spilled seeds and seed hulls from under the bird feeder. To deter squirrels, place feeders at least 7 to 8 feet away from solid tree limbs, fences, or railings, and try to situate feeders so squirrels can't jump onto them from above. To prevent access from below, erect feeders about 5 feet above the ground so squirrels can't leap up to them, and add a guard over the feeder pole.