1, smile at the signboard of life, and the past is like smoke. Description: This signature echoes the screen name, emphasizing that you can smile at all kinds of life, whether in prosperity or adversity, and show a free and easy optimistic attitude towards life.

2, a smile, all troubles disappear. Explanation: This signature is short and clear, highlighting the power of a smile. With a gentle smile, all the troubles seem to disappear, reflecting a positive attitude towards difficulties.

3, a smile, life is not green. Explanation: This signature quotes an ancient poem, which means that a smile can resolve grievances and show an open-minded mind. No matter where you live, you can remain positive and optimistic.