Case 7: Giving Technical Talks

Technical Talk Tips
Problem Technical writing, where the audience can... Technical speaking, where the audience must...
STRUCTURE Read in any order. Listen in the speaker's order of presentation.
  1. Plan your scope/depth tradeoffs early
    (use either broad and shallow treatment or narrow and deep).
  2. Reveal (overtly summarize) your talk's structure
    (the audience cannot see your mental outline or table of contents).
  3. Announce structure milestones as you pass them
    (use verbal headings ["the third problem..."] and proleptics ["by contrast..."]).
REVIEW Reread any passage. Rely on the speaker to repeat if appropriate.
  1. Remember the slogan "tell them what you're going to tell them, tell them, then tell them what you told them."
  2. Identify and manage your topic transitions carefully, usually with planned repetition of structure cues.
  3. Practice to avoid pointless, accidental repetition.
UNDERSTANDING Study and gradually understand. Understand on the first hearing.
  1. Choose your vocabulary, examples, and comparisons to control your technical depth. Adjust to suit:
    • Your audience's background.
    • How your talk unfolds.
  2. Manage your data density:
    • Control your amount of supporting detail.
    • Supplement your talk with detail-bearing handouts (references, for example).
    • Use visual aids (slides, models) to carefully increase data density without increasing confusion.
DELIVERY Read at any pace. Listen and absorb at the speaker's pace.
  1. (Before talking) spell out your list of claims
    (to confirm just how many claims you have).
  2. Rehearse privately:
    • With your notes (to tune self-prompts).
    • Before a mirror (to practice eye contact).
    • With a clock (to check pace and length).
  3. Avoid saying one thing and showing another
    (plan and practice speech/slide coordination).
  4. Maintain audience interest:
    • Use short, direct sentences.
    • Show (appropriate) enthusiasm.
    • Attend to audience needs (confused? can't hear? questions?).