That one awkward moment...
You guys ever have that awkward moment you are at a stop light and you look to your side and you meet eyes with other drivers/passengers? How awkward is that. 
That is not awkward at all, unless you are anti-social, of course.
i don't make eye contact i just flip them off
I always rolled my eye when that happen.
It's not weird unless they continue staring at you
You should get into the habit of not staring at other drivers on the road, because that's fucking weird. I jam to my music and look ahead at all times pretty much except when I'm doing mirror checks.
No..the real awkward moment is catching them with a finger buried up their nose.
I've actually caught people, and when they look at me I either laugh my balls off or make a mock repulsed face at them.