@MaraXXX I totally didn't believe in fairies either, on my first outdoor supply gathering trip I researched the most respectable way (ask permission, etc). It also said to thank the Faye with an offering of some cream or something shiny; to cover my bases I brought some glitter, gave it with sincerity...even though I thought it was silly.
I found snake skin and some awesome wild herbs, for 3 days after i randomly herd bells tingling noone else did, not the kind when you hear after listening to music too loud. Which is suppose to be a sign, according to the Google (lol) its b/c I'm a bit intuitive. Didn't see any, but a month later i made another offering, just as an experiment, and it happened again.
Anyhow, so apparently they WILL respond to offerings of cream, glitter, or sparkly tinsel.