Traditionally, people on horseback think that the left hand is a symbol of impurity. Don't reach out and ask for a handshake, and don't just point your index finger at people. Malays are forbidden to touch their heads. Except for teachers and religious ceremonies, it is not allowed to touch Malays' backs at will. When interacting with each other, you must dress neatly. If you go to someone's house and wear slippers, you must take them off and put them at the door. When visiting the church, it should be noted that non-Muslims should take off their shoes before entering the church. When visiting temples, women should pay attention to wearing arms and feet that cannot be exposed. Never walk in front of a Muslim who is praying. Do not take pictures or touch the Koran without permission.