Flat UI? Ever heard of that? Flat UI means Flat User Interface, it is one of the latest design trends in 2013. Everything has gone simple, minimal and finally flat. Flat UI has icons that are sweet looking, making CTR go way high. These icons are much more engaging than anything in the past.
If you do really care to update your present design of the site, the 50 free downloadable Flat UI Icons, Social Buttons and Packs will serve the purpose. Updating your site’s design to flat UI will make people know that you invest your time in these things, they will invest their time in your stuff as well. This is how it works, the more you are involved in your stuff, the more people get involved with you.