Use the Instant Polling Customization
The Instant Polling customization lets you create and answer quick surveys. Note that you can use this feature only if an administrator has enabled it.
To create an instant poll:
The "Add an instant poll" form appears.
You may enter up to three questions for users to answer.
The new instant poll appears. Users can answer the questions by clicking on the radio buttons next to their choices, then clicking.
The browser displays bar graphs reflecting the number of votes each answer has received.