:)

When I dont know how to reply to a question or dont want my opinion to be known, I just smile or do a small giggle (hehe types). This saves me from giving a verbal comment. It confuses the person and leaves him wondering whether that was a yes or a no or a duh (sometimes even i dont know which of these it is). Generally people think its a "duh!" and this prevents them from asking for clarity for the obvious. It does get me into trouble sometimes when a person is bold or clear enough to demand straight answers. But its very handy in like 9 out of 10 cases.

Try it, you ll like it!