There are significant dialectal differences between the islands and the following phrasebook is based on the dialect of Ishigaki, the largest and most populous island. See the separate Yonaguni phrasebook for the version spoken on Yonaguni.
"j" is pronounced like a "y" in English. Some syllables begin with a "ng", and this may be difficult for some English speakers. The triangular colon indicates a long vowel.
Oːritaboːri. (alternatively, oːritoːri)
Long time no see!
How are you doing?
How are you feeling?
Do you have any?
Which one is good?
Nice weather today, isn't it!
Kjuːja iji oːsuku yunna!
Bad weather today, isn't it...
Kjuːja jana oːsuku yunna!
Hot day today, isn't it.
Kjuːja attsaː soːraː.
It's my first trip to Yaeyama
Jajimange hazjimjitji kwitajuː.
I've been to Yaeyama a few times before
Jajimange ikumusung kjiurun'juː.
I've been busy with work... ; Sjigutunu hangtahaːnu.
There is a very, very large dictionary you can get at some bookshops, it comes in two volumes, one Yaeyama->Japanese and the other Japanese->Yaeyama. It also includes a brief grammar.