Use a pen to poke the person in front of you on the back.
Song Qi: Lend me your notes to read
Gu Shen gave it to her
Song Qi took a look and saw that it was full of dense annotations. It didn't look like notes for herself at all. She couldn't help but sigh to herself, no wonder she studied so well and worked so hard. . .
Gu Shen looked at her furry head and saw her writing furiously, thinking to herself, what a fool, her hand was almost broken just because she copied it just for you. But I don't know why I feel particularly satisfied.