[SSJup81]

To introduce yourself, you need to use a pronoun, naturally. The basic way is by saying...

Watashi wa (your name) desu.

Watashi means "I", but so does "atashi", "ore", "watakushi", and "boku. Which you use depends on the person. For adults, "watashi" is a safe one to use. Watakushi is just extreme suck-up level, to my knowledge. "Ore" and "boku" are masculine. Boku is for younger males, for the most part...ore is kind of rude and casual. Atashi is mostly used by young girls, to my knowledge.

Some other phrases...

Douzo yoroshiku onegai shimasu.
O-genki desu ka?

And my mind blanked out just now. ><;