I suggest spending time outdoors under a fairy tree. Bring an offering of food that you made for them, bread, cheese, wine or the like. Its a good place to start.
Are you sure its not it’s woods rather than your woods?
Well I think first you should actually check out the health of the tree: http://forestry.about.com/od/arboriculture/tp/tree_wound_type.htm
After that, you can begin making offerings to the fairies there. Since it is out in the woods you need to make sure whatever you offer is safe for wildlife and doesn’t have seeds in it.
Other things that help are picking up garbage and generally taking good care of the place.
A mistake liking wounding a tree can be forgiven with the right respect and stewardship.
You can use automatic writing alone fairly easily. Although using a ouijia board is possible alone. You don’t even have to buy one. You can make your own by writing out the letters and words on a large piece of card paper and using an upturned shot glass or a playing card with a hole the size of the letters cut into it to slide across the board. Even easier is a pendulum, which you can make from a key and a piece of string.
And nothing is ever completely safe, from the most mundane activities to the most spiritual. However, I and many of my friends have used spirit contact and the worst that has happened is they have gotten scared and had to banish something away—which can usually be handled with strong firm language and some salt.
Yes, just as with any other form of spirit communication you can set up wards to keep out certain types of spirits. Ouiji board is little different from automatic writing and drawing, so if you want to summon a particular spirit you can draw their symbol onto your hand or the planchette and summon/invite them before you start. You can cast a circle and invite the particular spirit outside the circle into a triangle or separate circle that cannot enter your circle to bug you and then you banish or excuse them when you are done. There are lots of options.
In the wild there are many things, and our names are the best we can do for them. But I think loosely the term fae is meant to cover most of them from the spirits of individual plants, to gods of place and everything in between. A lot of the material I use to understand fae comes from the Celtic Revival and they describe two main sorts, the Shining Ones, which would most likely be what we know as Gods, and then the fairies. But it is never that simple, and the more you explore, the more you will discover on your own.
I have encountered a variety of fairies, ancestors, creatures and gods in my wanderings. And I don’t doubt I will continue to discover more.
That is a very good question, and a very difficult one to narrow down. Many of my workings are never really repeated because I get the result I wanted. But there are some that I do regularly. There is a kind of all purpose working* called the Iron Pentacle that I do very often. There are many articles out there about it, as it is a foundational element of Feri and Reclaiming Traditions. I first encountered in Spiral Dance by Starhawk and have continued to learn about it through reading different articles and practicing it and then doing it in various situations.
*(blergh “all purpose” that is not the term I mean, but I don’t want to hold up answering this trying to find the right term, there likely isn’t one term that will explain all the ways it works).