If you have talked to us on WhatsApp before, your number tells us it is you, and your name tells us what to call you. Nothing is shown to anybody else, ever.
A good morning, or a quiet word in the evening — the way it used to come on WhatsApp. Nothing else, never a nag, and you can stop it any time.
A name and a mobile number, and this chat stays yours — on any phone, even if you clear this one. If you have talked to us on WhatsApp before, the same number brings that back too. We never show it to anyone.