"Smiling Buddha" mudra

"In the yogic tradition, mudras are hand postures that direct the subtle flow of energy or prana throughout the body. Joining the hands and fingers in various configurations creates a circuit that allows energy to flow to different parts of the body and brain. Each mudra has a specific purpose, such as healing, deepening awareness, or rejuvenation.

To form Kapitthaka Mudra or "Smiling Buddha" mudra, sit comfortably in a chair or with crossed legs. Tuck your ring and pinky fingers inside your palms. Rest your thumbs over the tucked fingers. Keep the index and middle fingers next to each other and extended. Hold your elbows in toward your body, keeping about a 30 degree angle between upper arms and forearms. Breathe deeply and relax.

Kapitthaka mudra is said to open the flow of energy to the heart, release emotional toxicity, and promote emotional well-being."

http://chopra.com/namaste/freedom