Girls writing on cigarettes usually refers to a plot in a novel. Here are some possible ways to write: 1. Direct Description: The girl gently wrote an alphabets on the cigarette. She used her fingertips to lightly smoke the alphabets as her fingers moved and gradually disappeared into the smoke. 2. Plot hint: The girl writing on the cigarette may be hinting at a plot or the development of a character. The alphabets she had written down could be a code or a hint of what she was planning. 3. Metaphorical expression: A girl writing on a cigarette is like drawing on a flame. Her fingers gently slid the alphabets on the cigarette, creating a unique sense of beauty. No matter which method was used, the plot of the girl writing on the cigarette required a certain degree of imagination and creativity to allow the reader to feel the unique beauty of the smoke, while also expressing the girl's feelings, thoughts, and intentions.