Are you left or right eyed?

Do you know which is your dominant eye? Try this quick test:

Stretch your arms out in front of you, level with your face, and make a small triangle with your hands, as per the photo.

Pick a focal point in front of you (eg: picture on the wall, or whatever), then look through the triangle with both your eyes open.

Now close your left eye. If your target object remains in view, you are right eye dominant. If your hands appear to move off the object and move to the left, you are left eye dominant.