Acting openly can be achieved by using different synonyms to convey the same message. Expressions such as "be candid," "be forthright," or "be transparent" are some examples. Another option is to use phrases like "play by the rules," "be above board," or "operate in plain sight." All these statements aim to describe the act of being honest and straightforward. Synonyms for "act openly" can vary depending on context. For instance, in a legal or regulatory context, terms like "comply" or "disclose" could be used. In contrast, in informal contexts, terms like "be honest" or "be straightforward" may be more appropriate.