Concrete words are those with several possible meanings

Which of the following is NOT recommended as you deliver a speech?

A) Walk back and forth across the front of the room as you are speaking. B) Move to the left, right, or center of the speaker's stand as you change from one main point to the next. C) Turn your eyes and body orientation toward various areas of the audience as you address them. D) As you approach the front of the room, appear eager to share your ideas. E) Make purposeful gestures that are above waist level.

A good guideline to remember when writing emails is to

a. address the recipient informally. b. try to be witty in the opening line. c. be as simple as possible. d. use a specific subject line.