What is he says hi?

"He says hi" is a simple and informal greeting used to acknowledge someone's presence and initiate conversation. It can be used in a variety of contexts, such as in-person interactions, phone conversations, or messaging. It may also be accompanied by other greetings or phrases, such as "how are you?" or "it's good to see you." The tone and context of the greeting can vary depending on the relationship and level of familiarity between the individuals.