Imagine that you have been asked to speack to a senior citizens group about a college university. Describe how you would prepare for your speech with this particular group of listeners. Include discussion on how you would conduct an audience analysis, how you would go about identifying and researching possibel topics, and how you would develop your ethos with this challenging group.

Find factors that you and your audience might share in common. Build on these.

To find these common factors, you might ask your audience questions like — "What are your goals?" "What activities do you enjoy?" "What is important to you?" "What skills would you like to develop?"

Even before giving the speech, you can also ask for information about your audience from the person(s) who asked you to give the talk.

I hope this helps. Thanks for asking.