The phrase "how go" is commonly used as a greeting, asking about the status or progress of a situation or event. There are several synonyms that can be used in place of this phrase, including "how's it going," "how are things," "how's the progress," "how's the situation," "how's the status," and "how are you progressing." All of these phrases serve the same purpose, seeking information about the current state of affairs. Choosing the right synonym depends on the relationship between the speaker and the listener, as some may be more casual or formal than others.