First, you should care about what others think of you

Second, you may have a slight inferiority complex

The reason why you are cheerful in front of acquaintances If you understand each other, others' opinions of you will not change. However, in front of strangers, you will be reserved because you want to work hard to maintain a very perfect image. You need to recognize yourself, don’t care too much about what others think of you, and do as you please, which will make you much more relaxed and happy. At the same time, you must be good at discovering your own shining points and building self-confidence