1. Show the inner world: the cover of the circle of friends symbolizes the window to the inner world of the individual. Choosing the window as the cover may indicate that you want to show your life, feelings and thoughts and let your friends know more about yourself.
2. Welcome and openness: Windows usually symbolize welcome and openness. Choosing a window as the cover of a circle of friends may indicate a desire to welcome friends into their lives, share their joys, sorrows and growth, and establish closer ties with them.
3. Hope and future: Windows also symbolize hope and future. Choosing the window as the cover of the circle of friends may be an expression of expectation and hope for the future and an optimistic and positive attitude.
Generally speaking, the cover of a circle of friends is a window, which may have many different meanings. The specific meaning should be interpreted according to everyone's situation and choice.