Measure the open area above the balcony railing using a tape measure. Purchase a roll-up outdoor shade that will fit the area. You may repeat this for other openings in the balcony if you need privacy from three directions.
Hang the blinds per package instructions by pre-drilling pilot holes with a small drill bit. Secure the enclosed screws in their respective hanging brackets by using a Philips-head screwdriver or drill bit.
Place tall potted plants, such as palm trees or rubber plants, strategically around the balcony to establish maximum privacy. Place them to the side of a seating area and between your outdoor space and your neighbor's, for example.
Place a trellis over a side opening on the balcony to partially block the view of neighbors. Secure the trellis by placing the bottom in a rectangular planter. Plant climbing roses, ivy, hibiscus or other plants that will climb the trellis and block the view to give you more privacy.