What are the “unwritten rules” for making and keeping friends in 2026?

I obviously understand the surface level mechanics of making friends, but what about for this day and age?

How do you treat socials? How do you interact? How often do you meet? What do you do? etc etc.

Honestly, just treat me like it’s my first day on earth and tell me everything you can! I would love to hear how you are navigating this.