Not sure how exactly you want to express yourself in emoji? Emoj is a simple little command line tool that allows to crank out a sentence and easily search for emoji that fit the bill.
Emoj runs off Node.js, so you'll need that installed first. Once that's taken care of, all you need to do is type
emoj followed by the text you want to look for, like
emoj 'i am hungry' and Emoj does the rest. It's certainly a bit silly, but it's also an easy way to find the emoji you're looking for.