Straw polls, telephone polls, online polls, tracking polls, exit polls and expert insights are method of taking political polls. Polls are used to gauge the opinion of the public on specific issues or to measure the general political mood.
Asking questions on polls reveals how people feel, whether or not they will eventually be voting on an issue or candidate. Polls use any of several criteria to determine how answers represent public sentiment.
Roy Morgan polls have people who go around to houses and ask people their opinions on various things and then leave a 200-300 page book with more questions from every thing to what you think of your brand of toothpast to what you what on TV and why.