When it comes to describing how someone limbers up, there are a wide range of synonyms available. For instance, you could say that someone is loosening up, warming up, stretching, or preparing their muscles. Other options might include getting into the groove, getting into the swing, or finding their rhythm. Each of these phrases carries a slightly different connotation, with some highlighting the physical aspect of warming up, while others emphasize the mental preparation that is often necessary before a workout or activity. Whatever term you choose, the important thing is to make sure that you use it consistently to help build your vocabulary and express yourself more clearly.