Provide several methods for the subject for reference.
First, since you are afraid or unable to tell me directly for unknown reasons, take the courier yourself or ask other students for help. This also saves most of the internal friction of the subject. Internal friction is the most harmful and useless. Remember to ask someone for help, and also remember to help you go back or find someone to eat snacks and drink water.
Second, first ask the students why they want to open the courier, and then talk about your concerns and preferences. Maybe he was worried about the dust and tore it clean, but you think privacy is more important; Maybe he always sells his strength and wants to share your new things, and you often show unconscious concealment.
Assuming that you are classmates with good relationships, communication at this level should not be difficult. If the topic belongs to students who are a little unnatural in socializing, but still can't do it, then I recommend a book to you, Non-violent Communication. This book is of great help to individuals, and of course there are many other excellent works. Communication and communication skills also need to be honed.
Third, observe whether he only dismantled your express delivery. If so, please see the second suggestion. If so, you should be careful with each other, or be more friendly and polite but keep a proper distance. Among college students, the family economic level is different, and their consumption concepts and habits are even more strange. This is an unchangeable environment, so you should learn to keep a low profile.
Think about whether your shopping is too ostentatious, hurting or stinging other people's small minds? Maybe you don't belong to the same type in life. Be a specific partner.
Friendship in college is extremely precious. I wish you all a happy ending.