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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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.