My brain tickles itself when something brand new gets invented. Something like a smartphone, and how different habits and customs form in each culture around that new smartphone. A brand new form of etiquette specific to each country is then created all over the world. Perhaps, in some countries, they call more than they text. Maybe in others WhatsApp trumps SMS. Maybe it's e-mail. Maybe in some hellish place, phones are used openly in cinemas.
And the best thing is, no one really knows these things! We're all aware of etiquette within our own country, but completely oblivious to how developing world countries have adjusted their conversations due to poor signal, or how other cultures deal with how many times the phone rings and so on. Sometimes saying hello isn't enough.
Here is an infographic from Repair Labs that reveals the proper etiquette of phone conversations in different countries around the world. Are they even right? I'm not sure the last time I genuinely said 'ta ta' as a parting remark. [Visual.ly via Design Taxi]