Polls let you gather a better perspective of user's opinions and views in a much easier and intuitive way.
Polls can be easily created via Quick Actions and Polls section. You will be redirected to "Post a Poll". Make sure you read the Instructions very carefully.
Participating in a poll is quiet simple. Simply click on the Participate button to reveal the voting panel with options.
On selecting the preferred choice, simply click on vote to complete your participation.