Here are some exercises you can do at home to train your biceps:

1. Push-Ups: While push-ups primarily work your chest and triceps, they also engage your biceps. To focus more on your biceps, try doing diamond push-ups where you place your hands close together to form a diamond shape.

2. Chin-Ups: Chin-ups are a great bodyweight exercise that primarily work your biceps. Grab a bar with your palms facing towards you, and pull yourself up until your chin is over the bar.

3. Resistance Band Curls: Resistance bands are a great tool for at-home workouts, and they can be used to perform bicep curls. Stand on the band with your feet shoulder-width apart and hold the handles with your palms facing upwards. Curl the band towards your shoulders, and then slowly lower it back down.

4. Dumbbell Hammer Curls: Hold a dumbbell in each hand with your palms facing towards your body. Curl the weights up towards your shoulders while keeping your palms facing inwards, then slowly lower them back down.

5. Isometric Holds: Hold a towel or resistance band at shoulder-width with your palms facing up. Push your hands outward against the towel or band and hold the tension for 30 seconds to a minute. This exercise will help to build strength and endurance in your biceps.

Remember to always warm up before exercising and to gradually increase the weight or resistance as your muscles adapt to the exercise.
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