Other than checking the other surfaces to ensure they are level, you will want to check the direction of the controls. Your instruction manual should show the correct directions of travel. Other items to accomplish are balancing the aircraft, ensuring you have a full range of throttle travel and can completely close the carb barrel with the throttle stick all the way down and trim all the way down. Tug on the controls to make sure the hinges aren't weak, and also make sure the nosewheel turns the same direction as the rudder. Before you fly it you should have an instructor check over the plane, so don't worry if you feel that you are missing anything.