Listen to what you are told in the briefing and during the flight and try to do what the instructor tells you to and you should be fine, also remember that if he has not taken control then he is happy for you to keep flying even if the aircraft does not seem as in control as you would like- just keep flying and talk to the instructor, he will help you sort it, though you will probably not find this happens and you just have fun, enjoy it and may be surprised at how easy it is.