Saku39 said:
So iie can mean no and your welcome?
Another confusing stuff... and a question like this always makes me realize how complicated Japanese language is!
As Elizabeth さん said, when iie in this case comes from "No it is nothing", or "No problem." So, this iie doesn't mean "you are welcome". Iie is always iie, "no". Thank goodness.
However, there is a little more to it. It's the purpose of saying "no".
I suspect that Elizabeth さん and others might have thought this iie as another "どういたしまして". Even if that's not the case, let me explain something here.
I got the impression that you guys are thinking iie is simply casual = less polite.
To me, I do not believe so, and here is the reason.
First, I need to explain why we say this iie (meaning "no", a part of "No problem", or "No, it is nothing").
In English, "No problem" surely can be less polite than "You are welcome". Don't you agree? "You are welcome" sounds nicer and polite in its expression.
However in Japanese, this iie means more. Take a look at this.
いいえ、それは大した事ではないです。
I am sure you guys already know the meaning. But, this is not equivalent to "No problem." Japanese people like to say this so that they can show their humility, making whatever they did for the person small rather than expressing "big stuff I did for you".
They like to sort of "deny" (no intention of telling a lie). Furthermore, we often say,
いいえ、いいえ、どういたしまして。
Repetition of いいえ can be heard/seen. Notice that iie is actually a part of どういたしまして now. (Even though iie itself came from "いいえ、それは大した事ではないです")
So why we say sometimes iie, iie? Do you know Japanese people like to make "stuff" short??
That's right. This iie is not a substitute, but a short version of the whole thing!
To me, saying "いいえ、いいえ。" does not sound less polite than どういたしまして itself because I always link both together in my head. Also don't forget the person who says this is making himself humble.
To make you surprise, I think (this can be just my opinion. I need to ask other Japanese people) いいえ、いいえ can be more polite than どういたしまして itself.
The best way? いいえ、どういたしまして。 There.
By the way, Elizabeth さん、恥ずかしくなくていい is a nice try. But I am not sure of the proper grammar for the case.
As I said, it's better to make it simpler. "Shy" for a shy person should be シャイ because シャイ is always for shy only. 恥ずかしい can be shy or embarrassing unless it's used as 恥ずかしがり屋.
By the way, 照れ屋 is another word for 恥ずかしがり屋.