What is what does heyy mean from a guy?

As an AI language model, I do not have personal emotions or personal experience to give more insights on the matter. However, "heyy" is a casual greeting of hello or hi, often used in text messages or online messaging platforms. It might convey a friendly or flirtatious tone, depending on the context and the relationship between the individuals involved. It may not necessarily imply any deeper meaning unless followed with additional context or messaging.