Egyptian and Sumerian Gods show different gestures. Babylonian gods touches their shoulders with crossed hands.This is called Kavacham Mudra. This protects one like a shield.Other gods and goddesses show one hand touching the heart (chest).It is called Jnana Mudra. Lord Rama liked this very much.Lower hand facing up, usually on one lap is called Vara(da) (boon) mudra. Hindu gods show Abhaya Mudra with one hand and Varada Mudra with another hand, which means “You don’t have to fear, You will get the asked boons”.Mudras affect the flow of energy in the body. By positioning the hands and fingers in a particular position one can channelize the energy. Jain Thirthankaras, Indus valley Statues and Egyptian Pharaohs keep their hanging hands straight. They resemble one another establishing some connection in the past. This Mudra is called Kayotsarga Mudra.Hand on hand on the lap is called Buddha Mudra. We can find this in Jain and Buddha statues. Hindus use Mudras in the Puja,Meditation, Yoga Sadhana (Practice), Yagas (Fire Ceremonies) and Naivedhyam (food offerings).There are different types of Mudras to please different Gods.Nyasa (anganyasa, karanyasa) done especially before worship of Siva is all Mudras.