I wouldn't worry too much about finding a hiking buddy. If you just start getting out on your own, starting slowly like Water Monkey said, you will really enjoy it when you do start hiking with others.
Personally, I'm neither social nor anti-social. I enjoy the company of others, but I enjoy solitude as well. When I plan a hike, I'm thrilled if someone comes along, but I will be darned if I'll cancel a trip because my hiking buddies pulled out at the last minute.