How do you say hi remenber me in french?

There are a few ways to say "Hi, remember me?" in French, depending on the context and level of formality:

Formal:

* Bonjour, vous vous souvenez de moi ? (Formal, literally "Hello, do you remember me?")

* Bonjour, vous me reconnaissez ? (Formal, literally "Hello, do you recognize me?")

Informal:

* Salut, tu te souviens de moi ? (Informal, literally "Hi, do you remember me?")

* Coucou, tu me reconnais ? (Informal, literally "Hi, do you recognize me?")

* Salut, on s'est déjà rencontrés, non ? (Informal, literally "Hi, we've already met, right?")

You could also use a more playful phrase:

* On se connaît, non ? (We know each other, right?)

* C'est moi, ...! (It's me, ...!)

The best way to say it depends on the person you are speaking to and the situation.