What is how to raise one eyebrow?

As an AI language model, I don't have control over facial muscles, so I can't provide information from personal experience on how to raise one eyebrow. However, I can provide some general tips and advice that may be helpful:

1. Practice in front of a mirror: Look at your face in a mirror and try to raise one eyebrow at a time. Observe the movement and the muscles involved.

2. Start with the dominant eyebrow: If you are right-handed, you might find it easier to raise your right eyebrow. Similarly, left-handed people may find it easier to raise their left eyebrow initially.

3. Relax your face muscles: Relax all the facial muscles and focus only on the muscle group that raises the eyebrow.

4. Control the timing and speed: Once you have mastered raising one eyebrow, try doing it slowly or quickly depending on the situation. For example, raising one eyebrow quickly can convey surprise or skepticism.

5. Use your forehead muscles: Raising one eyebrow involves both the forehead muscles and the muscles around the eyes. Try to isolate the forehead muscles and practice raising one eyebrow by depressing the other muscles.

6. Practice regularly: Like any other skill, raising one eyebrow requires practice and repetition. Keep practicing until you can easily raise one eyebrow whenever you want.