[Keaton421]

Hajimemashite - How do you do?
Douzo yoroshiku - Nice to meet you

Boku wa ___ - My name is ___
____ suki - I like ____
____ jouzu - I'm good at ____
Anata mo? And you?

Hai, ee, un - Yes (from most to least polite)
Iie, uun (hold the U longer) - No (same way)

Nani? - What?
Yukkuri onegaishimasu - Could you say it slower?

If you're daring...

Minnasan konbanwa eiga o mitai ka? - Hey guys, you want to see a movie tonight?

After the movie Yokatta ne? - That was good, wasn't it?

Or something like Ashita, isshoni nanika shimashou - We should do something together tomorrow

Ja ne - See you later

Anata wa genki? How are you?
Daijobu / Daijobu? - I'm alright / Are you alright?

Hontou? - Really?
Doushite? - Why?


This should do you for now. Tell me if you need anything else.