Phub
Phone snubbing. We easily see it in others’ behavior. It’s so annoying when it happens to you, but be honest, you may be guilty of this one yourself …
verb (used with object), phubbed, phubbing
1. to ignore (a person or one’s surroundings) when in a social situation by busying oneself with a phone or other mobile device
Hey, are you phubbing me?
I hate to see a mother wheeling a stroller while phubbing her baby.
verb (used without object), phubbed, phubbing.
2. to ignore a person or one’s surroundings in this way.
Origin of phub
First recorded in 2010-14; ph(one) + snub

Woman using telephone, c. 1910. From postcard via Wikimedia Commons.