The adhan is the call to prayer. Every Muslim in this time is being called to worship God. In some neighborhoods when the Shia adhan sounds, some people in the first sentence of the adhan : Allahu Akbar (God is great) put the right hand on the head. Which means respect and glorification. It is interesting to observe people walking, others in their homes, others driving the car, but at that time many with the same "synchronized choreography".
