However, as a brother, you should also keep a good border with your sister. You must take care of what you should do and learn to let go of what you shouldn't do. Too much attention will cause the little girl to resist, or you are aiming at the person she likes. First of all, we should secretly know whether a boy's net worth is innocent. By asking his sister or her friend, we pretend to collect information inadvertently, and then make a preliminary judgment in our mind. Then, act on your judgment. Take targeted measures.
If you find that the other person is not a good person, it will be more troublesome. But in any case, remember not to speak ill of that person directly in front of your sister, because at this time, your sister has been deceived by appearances, and it is easy for your sister to think that you are lying because you don't want others. Be smart, such as collecting hard evidence of each other's mistakes, inadvertently letting your sister find out, and then pretending to know nothing to protect your self-esteem. If you are a good person, remind your sister not to spend the night outside casually, and don't go to the bar with him, just in case, just report everything.