With the development of society, harmony becomes the theme of this time. Everyone is doing his best to make the surroundings harmonious. As a member of our campus, we should take action in building the harmonious campus. Here are some suggestions. First, treat people sincerely. We should be ready to help each other when someone is in trouble. Second, behave yourself. Keep our environment clean and take good care of every tree and every flower. Third, try to be polite. When we meet someone we know, a “hello” is good enough. Then, we can gain their respects for us. Of course, there are still a lot of things we can do to build the harmonious campus. Anyway, doing something good to our campus is our duty. Let’s do it from now on.