If a girl tells you that she has opened a jewelry store, you can reply to congratulate her and ask her more details about her jewelry store. The possible answer can be: "Wow! Congratulations on opening a jewelry store! That sounds exciting. I want to know more about your jewelry store. Can you tell me where your shop is? What kind of jewelry do you have? Is there anything else you want to share? " By asking her these questions, you can show your interest in her and learn more about her jewelry store.