do you mean winged eyeshadow?
Try using a small angled brush and draw a very faint line up from the outer corner of your eye (or where ever you want). Go over it in quick strokes if possible, it takes some practice. Once you have the lines going up, do your lids and eyeshadow how you would normally. After this, take the angled brush again and connect the tip of the eyeshadow line to the lid. fill in the remaining wing-space then shade in with your eyeshadow color. HTHs!