Elen síla lúmenn' omentielvo. -- "A star shines upon the hour of our meeting." (A fancy way to say hello.)
Mae govannen, mellon! -- "Well met, my friend!"
Aa' menealle nauva calen ar' malta! -- "May your ways be green and golden."
Cormlle naa tanya tel'raa! -- "Your heart is that of a lion!"
Amin sinta lle? -- "Do I know you?"
Lle anta amin tu? -- "Do you need help?"
Lle quena i'lambe tel' Eldalie? -- "Do you speak elvish?"
Lle merna salk? -- "Do you want to dance?"
Mankoi? -- "Why?"
Tira ten' rashwe! -- "Look out!"
Neuma! -- "It's a trap!"
Lle auta yeste'. -- "You go first."
Amin n'rangwa edanea! -- "I don't understand these humans."
Uuner uma, n'dela no'ta. -- "No one does, don't worry about it."
Llie n'vanima ar' lle atara lanneina. -- "You're ugly and your mother dresses you funny."
Auta miqula orqu! -- "Go kiss an orc!"
Amin autien rath. -- "I'm going to bed."
-The Gneech
(
My source, in case you're interested. It's a mishmash of Quenya, Sindarin, D&D lore, and whatever else strikes the author's fancy, I suspect. Fun, if not exactly rigorous scholarship!)