There are many ways to make hair selection in photoshop, you can use magic wand, pen tool, even extract tool. But there is a very good method that you can use, by using what we call channel selection. Yap we are going to use channel to make a selection, specially a difficult selection, like hair selection. This video will guide you how to use channel selection to make a selection. You can use this technique to make another difficult selection, such us fur or tree.