Bicep curls strengthen your biceps, making it easier to lift things during your everyday activities.
Start standing with a free weight in each hand and your palms facing forward. You will want to start with a light resistance weight for this exercise, somewhere around 5 lbs. Your weight should be heavy enough that your arms feel very tired after 6 to 8 repetitions of the exercise. If they don't, progress your weight the next time you do this exercise.
You can also perform this exercise seated in a chair.
Slowly bend your elbows, bringing your hands toward your shoulders. Then lower your hands back down to the starting position.