My right eye is dominant. I look at the other persons right eye.
I'm right handed at single handed activities like writing and throwing and left handed when I use two hands in sports like baseball and cricket.
So...seeing this topic made me think of an inquiry I have had for a while, which only pops up when the situation is present, but, it should be determined a priori so as not to create misunderstanding/confusion...so, now that I remembered, here goes:
If a person is cross-eyed, how do you know which of their two eyes is the 'right' one (i.e., that's the one they're using to look at you, so you should hold their gaze to that eye)? Cuz otherwise, if you're holding the gaze of the eye that's the 'outta sync', the other person might feel that you're deliberately creating attention to their condition (i.e., making fun of them)?