I was ten when I first sat with my grandmother behind the cashier（收银台）in her general store. (36) I quickly learned the importance of treating customers politely and saying “thank you.” At first I was paid in candy. (37) I worked every day after school, and during the summer and on weekends and holidays from 8 a.m. to 7 p.m. My father helped me set up a bank account. (38) By the time I was 12, my grandmother thought I had done such a good job that she promoted me to selling cosmetics（化妆品）. I developed the ability to look customers directl