When it comes to following instructions or guidelines, people often use the phrase "adhere to rules." However, there are various other phrases and terms that can be used as synonyms for this phrase. Some synonyms for "adhere to rules" include "comply with regulations," "follow protocols," "abide by directives," and "stick to guidelines." Other similar phrases include "observe policies," "obey laws," and "conform to standards." While the meaning may be slightly different for each of these synonyms, they all refer to the act of following rules or guidelines. It's important to choose the right phrase depending on the specific context and situation.