How can i make people feel good at school i hate to see people be bullied
Be their friend, stick up for them, be nice. Sit with them at lunch, say hi to them between classes. Just be there for them.
Greet everybody by name and with a smile. If you ask how they are, really listen to the answer. If you see bullying going on, step in to stop it and don't back down.
Tell this person they look nice today, ask them to have lunch with you, tell your friends how awesome they are so they will include them in activities. One nice thing you do, says a thousands words to those who treated them badly.