Summarize this article in one sentence.
Before you even get on the machine you should have an idea of what you want to accomplish for that day. Just hopping on the elliptical and moving is not the most effective or efficient way to workout. Make sure you have an idea of the time you plan to spend on the machine and the level of workout you intend to get. Most ellipticals will have a digital monitor. Before you start your workout, locate the incline buttons and figure out how to adjust the resistance.  Some ellipticals have a sticker or other label on them with instructions about how to get the machine started. Each machine is a little different so take the time to get comfortable using the console before starting your workout. If you are at the gym they may have their own instructions posted with additional information. You can also ask one of the trainers to help you get set up. Most elliptical machines will allow you to put in your weight and age. This way the machine can help you track how many calories you’ve burned during your workout.  The handles on some elliptical machines will have sensors on them that can monitor your heart rate as well. Some machines will allow you to plan a workout by adding some additional info including how many calories you want to burn, how long you would like to workout, or what intensity level you are aiming for. For a moderate workout, your heart rate should be 50 to 70 percent of your maximum heart rate. For a vigorous workout you’re aiming more for 70 to 85 percent. To calculate your max heart rate subtract your age from 220. If you are 31 you max heart rate is 189. Changing the incline angle of the machine can have a great effect on the intensity of your workout. Keeping the machine at low incline will give you a workout more akin to cross country skiing. A medium incline is more like a bike or spin class, and a high incline will be more like climbing stairs. You can adjust the settings throughout to give your workout variety and help you focus on different muscles.

Summary:
Set a goal for your time on the elliptical. Take a moment to familiarize yourself with the console. Program in your weight and age. Get comfortable adjusting the incline level.