I've seen people (extroverts, of course) actually pause and then, after a moment of thinking about what it must be like to be introverted, convulse slightly. The same type of convulse I'd expect to make if I watched a child slowly pull a long wet slug-noodle out of their nostril and then eat it.
THAT'S what it must be like to be shy... huh... imagine.
So, what does a maximum intorvert do in life (besides spell introvert wrong)? I stand in front of groups of strangers for about 12 hours a week and lecture to them.
Public speaking.
"Then you must NOT be an introvert!"
Mustn't I?
When I am forced into social situations I find myself becoming incredibly interested in digital hygiene... my cuticles are beginning to grow over my finger tips (not really, but you can imagine). I am relieved to be left to myself in a crowd and will simply become autistic. The more social pressure there is to interact, the more autistic I appear.
My students generally peg me as an extroverted party-person. Until the horror that is graduation and they corner me into forced civil exchanges with their parents. It isn't that I don't ever smile, but WOW... my fear of making idle chit-chat coupled with a complete inability to come up with comments related to anything OTHER than the weather puts me into perma-grin mode which begins to hurt my smiler muscles. "If you can't say anyhing, Steve, at least you can look friendly while not saying it." At least so says my inner voice.
So when I get cornered, I try...
After five minutes of what I imagine must be awkard silences deflated with occasional odd remarks... "So, are you here for the graduation ceremony?" "I see that you noticed the sky was blue today." "Did you visit the restrooms while on campus? They have fancy motion-activated paper towel dispensers." ...we part ways and I feel terrible for a week thinking about how stupid I must have sounded.