The item is a 1 time use only . When you use it, it will automaticaly teleport you back to the inn.
Here is what you must say and what the quest npc will say to you when you say the certain keywords, doing this will give you the information you need to complete the quest.
You say "hello old man"
-old man says "Hello. Please [help] me! I'm starving..."
You say "help"
-old man says "I havn't eaten a decent meal in days! If you were to get me some [children meats] i'm sure I could find something for you efforts.
You say "children meats"
-old man says "im sure you can find some outside the inn, those noisy rascals!"
>>Congratz, you now have all the information needed to do the quest, you know this because there are no more [ ] around words.
***To finish the quest gather 5 children meats from the children playing outside and give them to the old man (to give items to the old man push the trade button, its the button with the picture of the ring on it), he will reward you with the Crest of the Weary!