The act of "phubbing" involves the use of what?

I didn't realise there was a word for when people do this, I always thought that it already had a couple of words in the Oxford dictionary for this behavior....Such as "Rude" or "Ignorant" those in the physical that are talking to you deserve your attention if only briefly....phone friends will still be there..doing the same thing...put it down and have a chat with a real person 🤗