>>77772376First contact? However you would approach a dude, just talk to them. Be nice, be respectful, make a comment on the thing they just said, did or are wearing.
>Why would I talk to a dude?Imagine you're at a store, and you need something from someone, don't be afraid to bother them a little bit. Ask for their opinion and let them know yours, going from general and well known to more obscure, little by little.
One anon already commented that you should just get out there and get some field experience... I'm sorry to say he's right. You might get rejected, but after a couple of times you'll stop caring. The world is filled with other people, so interaction cannot be avoided.
Another anon commented it's all about your perspective on things. She got a bit depressed at the beginning, but was then pissed mad about the whole ordeal. Find the emotion that forces you to interact. Even indifference and fear (read Densha Otoko) can help.