[scotty79]

Just pretend to be extrovert. Smile and look at people when they talk as if what they are saying was fantastic. Imagine the people you meet are your friends. Those of your friends that prefer to talk than to listen to you. It's all bit tiresome for introvert but most jobs are.

When they hire you as long as you do what you are told and respond when somebody asks you about something and listen to people, no one will know that you are introvert.

[mikevm]

By pretending to be something you aren't you risk of trying too hard and looking even creepier.

[scotty79]

Not really. People are blunt, uninterested, and horrible at reading other people. "She killed herself? She was always such a cheerful person!"

Huge part of your self-image is not shared by other people.

You got a point with this "trying too hard" thing. Don't do that. Don't follow people when they don't want you, just react positively when they approach you. Lots of people are looking for listeners. Just listen to them. They will like you. And some other people will like you because those people like you.