When you tweet an emoji at Google, the company’s Twitter account will reply back with a link to a relevant local search result and a celebratory GIF.
If you want some tacos you could just tweet “🌮 @google” and wait for a reply. The company says it supports 200 emoji’s so far, along with some “easter eggs,” according to Mashable.
However, some emoji’s just don’t catch on. You’ll more than likely get better results if you tweet a food.