Lots of Hawaiian words are dropped into conversation. Those heard most often are :

"The committee appreciates your kokua" (cooperation,help)
"Thank you for sharing your mana" (mana -long final a = thoughts, essence)
"Mahalo for the birthday gift" (Mahalo = thank you)
And the bus at the airport that whisks you from one airline to another is the "wiki-wicki bus." (wiki-wicki = fast)

Then of course there is that lovely word : aloha.
And if you think I am going to type in the half page Pukui-Ebert Hawaiian Dictionary entry on the many meanings of aloha, think again!