This could SO have been written about me! The little cartoon guide is sweet and sensitive to our plight. :)
I also suspect that many of us Sjoggies who might not have been in this personality category originally have now found ourselves here by default---but this has always basically been 'me'.
Just click on the narrow and long pic to bring it up readable:
http://schrojones.deviantart.com/art/How-to-Live-with-Introverts-291305760 (http://schrojones.deviantart.com/art/How-to-Live-with-Introverts-291305760)