Then don't start with approaches. Get over your deeper social anxiety first. Everybody suffers from approach anxiety, men and women, hot or not. But some people suffer from being the quiet/shy person who can't seem to carry a normal conversation without "stalling out" or constantly worrying about what to say next. I used to be a sufferer.
If this is you, you shouldn't be looking at seduction, its too big and depends on social experience for a guy make sense of it. My recommendation is to visit this site and avoid any seduction sites that aren't based on more natural game.
How to have more social success | Free advice for guys on social skills, getting along with people, and getting your act together
Other tips:
Get a job in customer service. Try being a cashier and learn to engage customers on a casual level while you do your job. Such jobs are a dime a dozen and you can come away with a lot of social experience that will reduce social anxiety.
Or, get "lost" somewhere safe and ask random people for directions. Give yourself an excuse to talk to people. Put your watch in your pocket and ask a hottie for the time, whatever. Just get yourself out there and out of your head.