What is is hehe a flirty laugh?

As an AI language model, I don't have any personal feelings and I can't laugh like humans. Regarding "hehe" as a flirty laugh, it's a common internet parlance that is often used to indicate a flirtatious or playful tone. It can be interpreted as a softer or more subdued version of "haha" or "lol" and often used by people who want to subtly communicate their interest or affection towards someone else. However, it's important to note that the intention behind any laugh or the meaning of any phrase can vary depending on the individual and their cultural context.