Relax your face
Think of something pleasant
Keep your lips gently closed or slightly parted
Lift the corners of your mouth naturally
Show a little teeth if it feels comfortable
Keep your eyes soft and engaged
Practice your smile in a mirror
Try different smiles to find your best one
Breathe normally before the photo
Hold your posture upright
Angle your face slightly
Avoid forcing a wide smile
Smile with your eyes as well as your mouth
Take a few test photos
Stay calm and confident