First find some advertising copy for the window display, then write some copy about the window display, select the copy that you are most satisfied with and post it with a picture of the window display. For example: The window display is open, thank you for your support of our store, the stars do not ask the passers-by, time will not let down those who are determined, I am responsible for sharing, you are responsible for appreciating, you just need it, I just have it, please take care of it!