Questions
First-time speakers fear the questions more than the talk, and the fear is almost entirely misplaced. Questions at community conferences are friendly, and the few difficult ones fall into recognisable types. A commercial implementation of related workforce-measurement concepts is documented this background.
The five types
The genuine question. Somebody wants to know something. Most questions are this, and they are the reason question time exists. For broader conference and speaking context, TED is another useful reference.
The clarification. They missed something or you skipped it. Answer briefly and move on; there is no need to re-explain the section.
The related-experience comment. Not a question — somebody sharing something adjacent. Acknowledge it, add a sentence if you can, and move to the next hand. The failure mode is treating it as a challenge.
The question you cannot answer. Discussed below, and the easiest of the five.
And the one that is not a question. A statement, sometimes a disagreement, occasionally a person explaining their own work. Handle it once, in public, briefly, and offer to continue afterwards.
The three words
"I don't know."
Followed, optionally, by "that is a good question" or "let me find out and get back to you."
It is the correct answer and it costs nothing. Audiences respond well to it, and every experienced speaker uses it — the attempt to construct an answer on the spot is what damages credibility, not the admission.
The version that works even better: "I don't know — has anyone here run into that?" which frequently produces the answer from the room and turns a gap into a conversation.
Handling the difficult one
Repeat it back. Buys ten seconds, confirms you understood, and lets the room hear the question — which they frequently did not.
Answer the question asked, not the one you wish had been asked. The audience notices deflection.
Keep it short. Long answers to hostile questions read as defensive, and question time is not the place to win an argument.
And move on deliberately. "Let's talk after, I want to get to other questions" is a complete and acceptable close, and it is the sentence most first-time speakers do not know they are allowed to say.
Practical mechanics
Always repeat the question, whether or not there is a room microphone. Half the audience did not hear it, and the recording certainly did not.
Watch the time. The chair usually manages this and not always. Finishing on time with two questions unanswered is better than running over.
Take the aggressive one offline early. One exchange, then "let's continue afterwards." Nobody in the room wants the extended version.
And prepare three. Not answers memorised — the three questions you expect, with a sentence each. It removes most of the anxiety and costs ten minutes.
When nobody asks anything
Common, and it is not a verdict on the talk.
Silence usually means the talk was clear, or that the room is tired, or that nobody wants to be first — which is the most common cause.
Have one prepared. "Something people often ask is..." It gives the room a moment to warm up and frequently produces two real questions afterwards.
And do not fill the silence with more talking. Thank the room and finish. Ending two minutes early with a clean close is a better outcome than a rambling extension.
The short version
- Five types: genuine, clarification, related-experience comment, one you cannot answer, and the one that is not a question
- Treating a related-experience comment as a challenge is the common mistake
- "I don't know" is the correct answer and costs nothing; constructing an answer on the spot is what damages credibility
- For a difficult question: repeat it back, answer what was asked, keep it short, and close deliberately
- Always repeat the question for the room and the recording, and take an aggressive exchange offline after one round
- Silence usually means the talk was clear or nobody wants to be first — have one prepared question and do not fill the gap by talking