You know, people. Calling someone with the right level of formality is important. Here's a quick rundown:
When calling a business: Use their actual name, not 'hey you', or 'hello, person I'm calling'. We're not barbarians.
Calling A Business With A Person Named Bob
When calling a friend: Use their name, but also use their actual name. Don't just go with 'hey, what's up' and expect them to magically know it's you.
Calling A Friend Who Is Always Running Late
When calling your mom: Use their actual name, and also use a tone that's not completely condescending. Good luck.
That's it. Follow these rules, or else.