Well on passing the thread title led me to remember this video, so I'll post this as a reference as I feel its topical.

[youtube]https://youtu.be/flthk8SNiiE[/youtube]

Fundamentally being sociable - or even being able to observe people being social - is a pretty big skill to have on some level. In my daily life I'm pretty forced to be social on a costumer service basis and then often engage in casual conversation with people. So I'd venture to say my otherwise introvertedness is broken down. But still: I'm not going out of my way to solicit random conversation with people, even if I should try with my classmates.