Show your assets!
Take for instance this typical Dutch house with a generous roof terrace.
I am sure you will agree with me, looking at those pictures does not give you the urge to go and sit there. It is grey, fade, nearly sad as it looks now. Whereas if you put nice big pots with healthy plants on it, beautiful flowers in a vase on the table, if you change the position of the table to a more central spot instead of against the wall, if you remove unused and unnecessary stuff, the terrace becomes immediately much more attractive. Now you feel like sitting comfortably around the table and enjoy the sun, don’t you?