"Find your tongue" is a phrase that is often used to encourage someone to start speaking or express themselves clearly. There are many synonyms and alternative phrases that can be used to convey a similar meaning. Some of these include "speak up," "speak your mind," "find your voice," "express yourself," "let it out," "speak freely," "articulate your thoughts," "say what's on your mind," "speak your truth," and "share your opinion." These phrases can be used in a variety of contexts, from encouraging someone to speak up in a group setting to motivating someone to express their emotions and experiences.