Formal:
* Fa'atalitali mai ia te a'u. (This is a more polite and formal way to say it.)
Informal:
* Fa'atalitali ia te a'u. (This is a more casual way to say it.)
* Tali mai ia te a'u. (This is a more casual and direct way to say "wait for me".)
You can also use "Fa'atalitali" on its own, which means "wait." However, it's important to note that "fa'atalitali" alone can also be used for general situations like waiting in line or for something to happen.
Remember that the best way to say "wait for me" in Samoan depends on your relationship with the person you are speaking to. If you are unsure, it is always best to use the more formal option.