01, baby
When a girl secretly calls you baby, it must be interesting to you, otherwise she can't call you baby. The title of baby, only parents or lovers, will have such a title. If you are an ordinary friend, you will generally not be called that, between men and women, and you will not be called this way. If the girl calls you baby in private, if you don't like the girl, don't delay the time of others, this is a piece of advice from someone who has come to you.
02, husband
When a woman is not yet married to you, calling you so in private is also indirectly telling you that she likes you and wants to be your wife. She really treats you like her husband to call you that. Why would you want to call you husband? It could be that at some point you made her feel that you were the man she had been waiting for. From calling him by his name to calling him husband, it was actually a sudden change. So man, having a woman named your husband is an honorable thing and requires you to work harder.
03, brother
It's impossible for a girl to call someone she doesn't like brother unless it's polite language that needs his help. But if a girl has been calling you brother, such an obvious hint indicates that she wants you to chase, she is interested in you, but the girl's little vanity is embarrassed to say broken. Calling your brother is that she wants to use this title to get closer to you, so when she enters the ambiguous stage and determines your intentions, it is convenient to have a closer relationship.