Do:

Communicate ideas.               

Be interesting.                        

Consider testifying as an opportunity.

Grab the audience's attention.           

Be pleasant.                

Practice breathing and relaxation.

Learn to relax.                        

Smile when appropriate.                    

Communicate attitudes and feelings.

Vary the pitch and rate.                     

Gesture for emphasis.                        

State ideas clearly and emphatically.

Prepare your testimony.                                 

Practice vocal and facial exercises.                

Concentrate on the material.  

Talk, chat or converse.                       

Deliver a verbal summary.     

Don't:

Read words.

Be dull and lifeless.

Consider testifying as a chore.

Bore your audience.

Be intimidated.

Ignore the importance of relaxation exercises.

Get tense and stay that way.

Frown continually.

Rely purely on logic.

Speak more loudly than necessary.

Wring your hands or wave them in the air.

Merely recite words from a page.

Trust to luck.

Assume you will be animated under stress.

Think only about yourself.

Read, preach or orate.

Present a detailed, wordy recitation.