This probably won’t be a long observation, as a title like Humans and the Phone says a lot by itself, but what I do have to say on the subject, I figured I should put down.
Humans will often begin a call to a business with “Oh, hello,” as though slightly surprised, even though they knew the callee would pick up, or the answering machine would. Perhaps they think it sounds humble. Humans also like to show how smart they are with “Caller ID”, and will pick up the phone saying “Hi, (insert name),” which can lead to a rather embarrassing situation if someone else is using the caller’s phone.
Another thing about humans on the phone is that they can’t seem to keep still. Even if they would sit or stand quite immobile during a face-to-face conversation, they suddenly believe that it will help get their point across to walk about, or nod, or jab the air, even though they can’t be seen by whoever they’re talking to. It’s quite amusing to watch a cross or excited human talk on the phone.
Silences during conversation are generally quite alright for all participating humans if it’s in a face-to-face situation, but on the phone it must feel very awkward, listening to the faint buzz, and hoping you can say something to break the silence without sounding foolish. Generally a “so… how have you been?” makes the human who just said it groan inwardly at themself.
I would have to say that humans behave more strangely on the phone than at most other times.