Do whatever feels right to you.
There is no correct way to communicate — only one rule worth keeping: don't limit the freedom of the person on the other end.
No rules. One principle.
Etiquette guides are written with good intentions, but they have a problem: they turn preferences into prescriptions. Someone's idea of "efficient communication" becomes a rulebook you're expected to follow — or else you're being rude, inconsiderate, or unprofessional.
Here's a different frame: etiquette is just a suggestion. Following it, ignoring it, adapting it — all of that is your freedom. The only thing that isn't freely yours to do is make choices that take options away from the person you're talking to.
"Your freedom ends where it starts to limit mine. Until then — do your thing."
Hello, or straight to it — both work
Want to start with a warm hello and some small talk before getting to the point? Great. Want to open with your question directly? Also great. Neither style is wrong.
What matters is that the other person still gets to decide how and when to respond. A "hello" doesn't trap anyone. A direct question doesn't either. You're just talking — let people answer in their own time and style.
The version of this philosophy that becomes a problem is when it turns into: "you must not say hello" or "you must include your question upfront." As soon as communication style becomes a mandate, someone's freedom is being clipped.
About calling
Call whenever you feel like it. If I'm free and in the right headspace, I'll pick up. If I'm not, I'll decline or let it ring. That's the whole system — it already works.
Accept: great, let's talk!
Decline or ignore: no worries, neither of us owes the other instant availability.
Neither calling out of the blue nor asking "do you have a minute?" first is more correct. You have the freedom to reach out how you like. I have the freedom to answer or not. As long as calling doesn't somehow force me to pick up, your freedom and mine coexist just fine.
Two freedoms. Both respected.
The whole thing really is this simple:
Your freedom to reach out
Say hello, skip the hello, call, message, ping — however feels natural to you. There's no wrong style, only your style.
My freedom to respond
I'll answer when I can, how I can. I might reply immediately, later, or not at all. That's not rudeness — that's autonomy.
The only line worth drawing: don't communicate in a way that removes the other person's choices. Pressuring someone to respond instantly, expecting them to always be available, or making them feel obligated — that's where one person's freedom starts eating the other's.
Don't limit their freedom.
No etiquette guide has the authority to tell you how to talk to people. Not this one either. Communicate however feels right — warm, direct, formal, casual, with a hello or without.
Just keep this one thing in mind: the person you're messaging is also free. Free to answer slowly, free to decline your call, free to communicate differently than you do. As long as you both keep that space open for each other, everything else is just style.