Refresh your memory. Picture the scene, the distances between things, and what happened. If you gave a written statement, ask to review it.

Tell the truth. Never forget that you are under oath.

Don't guess. If you don't know, say you don't know.

Dress in a neat respectable manner. Your appearance should not distract from your testimony or make you look less believable.

Don't lose your temper. If you become confused or angry during questioning, remain calm and answer in a non-hostile manner.

Answer only what is asked. Don't volunteer information or stray from the question. Answer with "yes" or "no" whenever possible.

Speak loudly and clearly. Everything you say is being recorded by the court reporter. Don't nod your head.

Avoid jokes and wisecracks. A criminal case is a serious matter.

Beware of questions involving time and distance. If you are estimating, be sure everyone understands you are only estimating.

Stick to the facts. Do not draw conclusions or state opinions unless you are asked.

Think before speaking. If you don't understand a question, ask that it be repeated or explained. If you don't know, or can't remember, say so.

Relax. Your testimony will be completed sooner than you think.