Working out at a gym can be a little intimidating with so many different types of equipment to choose from, ranging from the cardio craziness of the StepMill to the medieval-looking cable pulley machine. One would be hard pressed to be an expert on using them all. So don't feel like you need to be! You can always ask for some help.
It just doesn't pay to be shy. If you are interested in trying a new piece of equipment, ask someone who works at the gym to show you the ropes, or the "pulleys" for that matter. Not only will you be trying new things, which is always a great idea, but your chances of hurting yourself will decrease if you know how to work the equipment. Talk to the instructor after a group class if you have questions about your form or are looking for ways to modify an exercise. To get into the nitty gritty of your fitness life, it might be a good idea to have a session with a personal trainer.
Other gym members will likely help you out too. Some people really like to talk form and will be happy to spot or assist you. You'll not only become more fitness savvy, but connecting with your gym community will also motivate you to go.