What gift should I give my classmates for their birthdays?

Of course, this actually requires your careful observation. For example, she usually likes to wear earrings, so you can choose a pair that suits her. Also depends on her hobbies. For example, now the weather is hot and cold, you can buy her a dress or glasses. Think about what she has been short of recently. Maybe it's no use taking this as a gift. I hope you can find a good gift. If it is a boy, the average boy is very rational and will think of practicality when judging things, so my advice to you is that it is ok to buy a pair of sunglasses, clothes, shoes, bags and so on, mainly depending on what he likes better. Everyone is different. You need your eyes to see what he really wants.