Pebbles, hanging lights, & matching chairs can make a blah space into
a pleasant sitting area
On concrete areas, outdoor area rugs make it more inviting, along
with water-resistant pillows
Bring out floor pillows & picnic blankets on a dry day
Simple hanging potted plants or window boxes make exposed
balconies more private & cozy-feeling
Outdoor daybed style lounger
& painting wood white gives a fresh, airy look to a space
Square concrete tiles w/ moss or grass planted between them
keeps the vibe natural/rustic.
Wall vines have a similar effect
Tall plants, like bamboo, give a more exotic & private result.
Add strands of lights or lanterns for a magical effect.