Full Form:

• Bend the index fingers of both hands while the rest of the fingers are closed in a fist
• Turn one hand so the palm is facing upwards
• Turn the other hand so the palm is facing downwards
• Link the index fingers
• Rotate the hands, switching palm orientation

*Simplified Form:

• Point the index fingers of both hands
• Turn one hand so the palm is facing upwards
• Turn the other hand so the palm is facing downwards
• Touch the fingertips of both hands together

*shown in video