If in civilian clothes during The National Anthem, members must place their right hand over what?

When members of the military are in civilian clothes during the playing of The National Anthem, proper etiquette dictates that they place their right hand over their heart. This gesture is a sign of respect and patriotism, which aligns with the customs and courtesies of the military even when in non-uniform attire. The act of placing the right hand over the heart is a universally recognized symbol of allegiance to the flag and the nation it represents.

This practice emphasizes the importance of honoring the National Anthem and the values it stands for, regardless of one's uniform status. While other positions, such as hand placement over the chest or shoulder, convey a sense of respect, the specific tradition is to cover the heart, symbolizing a sincere and heartfelt connection to the ideals of the country.