Fae is an umbrella term to cover a wide variety of nature, usually plant or insect, based spirits. Commonly taken from Celtic and Norse mythology, they are also compared to the nature nymphs from Greco-Roman mythology.
What the previous poster stated is true, those are ways thought to help attract Fae spirits. Depending on where you live, maintaining a garden may help in attracting sprites and pixies.
The Fae are known for being tricksters, and many legends describe their love for small children. By working with the Fae some believe that you would be endangering your children to be taken by them (mentally - physical theft would not happen). Mobiles made of iron trinkets hung above the bed can protect children from this.
Commonly, Fae are thought to be most attracted by: the color green, gardens, bright flowers, juices, nectars, milks (usually goat), honey, small cakes or cookies.
Repelled by: Iron, different metal alloys (man made metal mixtures), bright and bloody red colors, rotting meat, excessive amounts of electral appliances where you want/see them.
Good luck in your endeavors with the Fae, and be ever watchful!