Hi. I've created my adwords account, entered a coupon, created my first compaign and loaded some keywords. Keywords got "eligible", but now a question- my ad has 0 imps/clicks, and more, when I'm typing them to google my ad doesn't show up (my location/language are accurate with the ones I've set in the settings). My bids are auto so it isn't due to the low bidding I think. Why?