When I'm traveling abroad, I like to take extra notice to the ads. I was recently in Hong Kong and noticed a lot of the ads had a unique Facebook call out. Unlike the US, where you often see a standalone Facebook logo in the corner or accompanied by a "Like us" on Facebook call-to-action, what makes the Hong Kong Facebook call out more effective is the visualization of the Facebook search bar. The search bar makes it intuitive to the viewer on how to find your brand on Facebook. I haven't seen this done in the states, and I don't see why every brand on facebook shouldn't do this!