Sometimes, using the same phrase repeatedly can make your writing or speech sound monotonous. When it comes to the phrase "be playing," there are many synonyms you can use to add variety and interest to your language. Some of these synonyms include "be fooling around," "be goofing off," "be messing around," "be horsing around," "be having fun," "be enjoying oneself," "be amusing oneself," "be entertaining oneself," and "be amusing oneself." Each of these synonyms conveys a slightly different nuance but can be used interchangeably with "be playing" to avoid repetition and enhance your language.