The problem of this research was to determine the influence of social networks on consumer’s behavior. The focus was on examining the impact of Instagram, Facebook and Twitter on the consumer’s behavior. The main research results and findings suggest the acceptance of two, out of three, research hypotheses. The results show that the respondents are mostly using Instagram and Facebook, while Twitter turned out to be unpopular in all segments among the respondents. The results indicate that respondents follow different content on listed social networks, from friends and relatives to sites of restaurants and shopping places. The research showed a greater impact of Instagram on consumers, when it comes to attracting the attention using the variety of posts that include the promotion of products/services, discounts in stores, while on Facebook consumers buy more than it is a case with Instagram. It can be concluded that social networks have become one of the main platforms for advertising, where by different social network advertising types are utilized each day. The key of good social network advertising, as a way of attracting the attention of consumers, lies within the creativity and smart marketing approach. Companies should publish the content that communicates the main purpose in an interesting and creative way, using different images, posts of other people using their products/services, offering the rewarding games, discounts in order to attract the consumer’s attention and stimulate the thinking about the advertised product/service.