As a teacher. I often make it a rule that when we are on a field tript there will be no talking as we enter a building. This rule applies io entering any place, whether it is a cinema, a church, a theatre, or any other place.
Once, in New York City, I took my class to see a play near Times Square. When we arrived at the theatre, there were about twenty other classes lined up outside waiting to get in. The students from the other schools were not behaving and there was pandemonium(乌烟瘴气).I told my students to stay in a line and keep order. I told them that we would not carry ourselves like those other classes. Soon we started to file into the theatre, and it was very disorganized. A lady tried to organize the groups and get them to their seats, but the students were everywhere and nobody really knew where to go. My class, observing our rule, walked quietly in two single-file lines.We stood near the door behind everyone else, and we waited. All of a sudden, the lady who was in charge noticed us and she walked in our direction. She asked the students where the teacher was for our group, and I raised my hand. She asked, "Very, very nice to meet you, Come this way." We were led into the theatre first, and we were given front-row seats.
Sometimes respect for others may not seem like it is going to have an effect, especially when you meet no one around who is taking manners into account. However, that is usually the time when such kind actions will be most appreciated and recognized.