This is particularly interesting for e-commerce because a product feed (showcase) can be displayed in real time during the hangout. On the other hand side, this is also a neat feature for info products such as e-books, podcasts and video courses.
With a minimum recommended length of only 20 seconds and the ability to reuse existing AdWords remarketing lists, these campaigns are quick and easy to set up - two characteristics both entrepreneurs and marketers appreciate.
Facebook Lookalike Audiences
In other words, you can target your visitor's friends without them ever having been to your site. The advantages are that you can expand your reach quickly and precisely without risking to go too broad in your targeting. Lookalike audiences can be narrowed down by gender, age, interests and more.