I am a store manager, but I feel insecure. I saw that there was something wrong with the employee below, but I was too embarrassed to say him, so I gave it to the boss.

Work can't be emotional. Work belongs to work. Since you are in charge, you should be serious. Of course, you can't talk too much in words. You must give a meeting to your subordinates before going to work every day. There is no need to point out others in a shocking way in a meeting. For example, someone is inattentive and undisciplined at work. Be careful next time, don't affect the company image, otherwise everyone will have a hard time. I suggest you refer to it! Don't forget to adopt it when you are satisfied.