I know I would be more sociable if I didn't have the internet. But I just can't... I think I am addicted and I would be too unhappy without it.
But a holiday (vacation) is good for this, like if you have a week in another country, don't take your laptop or whatever. Go out and enjoy the sights, and meet people. It does you a lot of good, I always come back in a more outgoing mood (but also really missing the internet

).
Personally I think the internet has ruined a lot of people's lives, people like me who grew up with it, and instead of going out with friends to do things just stay inside playing computer games with strangers over the internet. Before the internet existed, at least that sort of person would have been going round to a friend's house and playing in the same room, and developing some social skills and have close real friends. (yeah boo hoo I know, it's basically all my fault th mess I have made).