Before you begin, make sure your skin is clean and apply a facial oil or moisturiser of your choice.
Angle the gua sha tool as close to parallel with your skin as possible (you don't want to dig the edge straight in like you're chopping). Place the fingers of your free hand close to the tool's edge to provide some resistance.
Gently sweep the tool up and out toward the perimeter of your face. At the end of each stroke, give the tool a little extra wiggle to help release the tension.
Repeat each stroke three times - you can build up to more once you've learned your skin's tolerance.
Use as needed on other areas following the same steps.