When answering questions from a convenience store clerk, you can say "I didn't notice" or "I'm not sure." This is a polite way to respond to the clerk while avoiding a potentially in-depth conversation. If you need help with something else, you can ask the clerk "Excuse me," and after the clerk answers, you can nod and smile to express your gratitude without giving too much explanation. When shopping, you can try to avoid letting the clerk ask you too many questions, such as answering questions briefly or saying thank you directly. After shopping, you can pay and leave directly without having too much conversation with the clerk. If the clerk asks Howell if he needs anything else, you can politely reply by saying "I don't need anything else, thank you" to politely refuse further conversation. End the conversation with a polite smile and nod, express your gratitude, and then end the shopping. If the clerk enthusiastically recommends a product, you can say "Thank you for your recommendation, I will consider it," which is both polite and avoids getting into a complicated conversation. When the conversation cannot be avoided, maintain a friendly attitude, answer the clerk's questions, and don't embarrass the other party. Avoiding overly in-depth or complicated conversations with clerks can make the shopping process more efficient and comfortable.