The first thing is not to make too many jokes. After all, being a female friend is awkward, unlike a buddy, you can do whatever you want. All female friends should be serious, even if they are joking, don't be colored, let alone take advantage of others. If you can do this, others will think that you have not violated her territory, which is the most necessary and a key point to keep your distance.
The second is not to move your limbs, or go back and forth like a buddy. After all, it is wrong to get along with the opposite sex. If you are not interested in others, don't do things that make people misunderstand. If you are interested in others, you should respect her more. When you are still friends, don't be indecent, keep a safe distance, and don't let each other fall into ambiguity. If you fall into ambiguity, there is no way to keep your distance.
The third is not to talk too deeply. There are many boys who will listen to their female friends and comfort others. It doesn't matter if it is occasionally. If you always communicate with your heart, you can't keep your distance. When a boy has a girlfriend, it is very annoying. Therefore, when a boy finds that a female friend shows signs of talking, he should stop or let a friend he knows enlighten her. In a word, they should not regard themselves as central air conditioners.
In addition, don't take people to see a doctor when you have a cold, but stay with them when you are sick. Ask her not to have any friends, so that you can do it. Pay attention to these points, especially boys who have girlfriends, and don't make their girlfriends jealous and quarrel.