I was just going to say -- I testify in court all the time, and lawyers absolutely are able to get up and walk around, although I have rarely seen one approach a jury closely except in opening statements or closing -- usually they sort of half-turn towards the jury and that's to remind the witness to speak to the jury, not to the lawyer. On the contrary, if it's a bench trial with just a judge, they are more likely to stay back, but still probably half will approach the witness when questioning.
As to calling someone by name in conversation, it's very individual. I have some friends who use my name in face-to-face conversation a lot, others (most) almost never. I don't much unless I'm arguing or teasing or nagging, although I do on the phone more often.
I disagree about backstory. I have some friends who always include background, and I have to remind them I already know -- while others never provide any context, just launch into a story about someone I've never heard of, and I have to say "Who the **** are you talking about and why do I care?"
So what I notice (as a psychologist) is how uniform the speech and communication styles tend to be in movies and TV. You rarely get the obsessively detailed, tangential, never gets to the point people; the vague, impressionistic types; or the always self-referential -- it's written to be efficient. To get the plot from point A to point B.
