German cartoonist floccinaucinihilipilificationa has managed to explain what introverts feels like, in socially awkward situations.
Mostly being socially awkward involves not being able to understand the duration of a handshake at a social gathering, or trying to maintain an eye-contact. Or maybe trying too hard to not be awkward. All of these, introverts would know and feel. Check out the comics below:
More info: Tumblr