Well its ok to be shy, especially if you are near someone you like. If you want to start dating, find someone with a common interest, and try to open up more. Like try to speak your mind a bit more, and if you are with someone you are comfortable with you should notice that you are less shy. Most people that are shy, they will have someone they aren't shy with. Just try to be a bit more open. Hope this makes sense, and good luck!