Look at their hair, ears, lips, nose ... switch back and forth often.
Another way is to "defocus" your eyes and look past them.
If you're far-sighted (like I am), then just remove your glasses and look somewhere toward the top of the big blur in front of you.
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I have no love for Hamas, Hezbollah, Iranian Leadership, Islamic Jihad, other Islamic terrorist groups, OR their supporters and sympathizers.