Listen monitors user behaviour and the source of website visits and allows you to set up rules to automatically associate contexts with individuals exhibiting that behaviour. You can then write specific targeted content for each context with no programmers or html skills required.
You've used Listen to find out your site selling property education has a really bad record of conversion for the keyword 'Property Auction'. So you use the simple Listen interface to give that keyword the context 'Auctions'. When a visitor types 'property auction' into Google and follows the link to your site, that user immediately sees your targeted content relevant to property auctions, increasing conversion significantly!
Find out more about dynamic targeted content in our tutorial: