Formal:
* Moi aussi: This is the most common and literal translation of "me too."
* De même: This is a more formal way to say "me too."
* Je le suis aussi: This literally means "I am that way too" and can be used to agree with a statement about someone's personality or characteristics.
Informal:
* Moi pareil: This is a more casual way to say "me too."
* Pareil pour moi: This means "same for me" and is a good alternative to "moi pareil."
* Pareil: This is a very informal way to say "me too" and is often used between friends.
Example:
* A: J'aime le chocolat. (I like chocolate.)
* B: Moi aussi! (Me too!)
You can use any of these phrases depending on the situation. Remember to choose the phrase that is appropriate for the level of formality of the conversation.