1. Smiling makes people want to be close by temperament. 2. People who are helpful and kind always make people close, and helping one person will make one more friend. 3. More inner communication, let others know you, understand you, and get to know each other will make you have more intimate friends. 4. Be the best you can, and don't change yourself to cater to others. When you are good enough, there will naturally be many people willing to be your good friends.