I think of myself as being mostly introverted, so I was a little surprised at how well I can relate to many of those suggestions. It's good to remember that the introvert-extrovert thing is a tendency with many levels rather than an absolute. I do need and enjoy lots of alone time, solo projects, and low-intensity social interaction (ahem ahem, internet forums like HN...). But I also need some amount of actual in-person social interaction, including the types of things the author describes.<p>I also wonder sometimes just how introverted people who say that they're introverted really are. I tend to think that true introversion is genuine pleasure at being alone, and discomfort from being in social situations is not necessarily a consequence of that so much as not having learned social skills. Enjoying being alone is perfectly okay and not something that can be or needs to be 'fixed'. Social skills can be learned and improved at any time, though, just like any other skill. If you don't care to, that's perfectly fine, but you could be missing out on a lot of things you might otherwise get.