In replying to a question from an attorney, I will be reading the face of that attorney. If asked a question by the judge, I will address the judge as "your honor". Many of the trials I have been involved in a sort of 3 way conversation going on. The judge often addresses the attorney, especially if the opposing counsel is objecting to the question. I am slow to respond so that I fully absorb the question and allow time for the attorney for my client to object.
All the jury trials I have been in were in the same courthouse and the jury is seated to the left and judge to the right. And the court recorder is just in front of the judge. That's who needs to hear you clearly. Clear speaking was really important in our federal bankruptcy court as there are a huge number of pending cases also in the audience and the room was large.
In a Little Rock courtroom once, it was large but other than the judge, bailiff, recorder, 2 lawyers, 2 defendants and 1 plaintiff, there were 4 appraisers. No one else. We all testified. I was on the stand for 3.5 hours. The most important thing is not to take it personally. Don't contend with them, don't argue or show anger. They will poke you more. I saw that happened to an appraiser in bankruptcy court once. The judge gave him what for because he was getting flustered with the attorney.
The Little Rock trial did not end until 7pm. As we walked out of the court, the man who grilled me like a rotisserie chicken and his appraiser (a friend of mine) and I went down the elevator and he said, "If I had known you even existed, I would have hired you and you'd never seen the light of this court." Later he called me about some mineral rights in Searcy and our mineral group hired him to bring up our incorporation papers. He was doing his job and did it well. And I had been warned that he was rather aggressive. He wanted me to break and get mad but I didn't. As for the outcome of that trial, there were originally 5 appraisers. One had to be at his daughter's wedding out of state. In the end, the judge took his value which was intermediate to the other 2 values. (I was only there to assert that the mineral rights did have value.)