[steven2012]

Practice and interview. That's all you can do. If you think there's some secret to it, there isn't. The more you interview, the more you'll realize that a lot of it is luck-based, in that the questions you're asked are either reasonable or unreasonable. You have no control over that, so don't bother worrying. If you're trying to join a company that consistently asks unreasonable questions, then you either need to level up and learn the material behind the questions they're asking, or give up.