How to reduce my google adwords cost per click to $0.10?

How to reduce my google adwords cost per click to $0.10? I am trying out google adwords for the first time and well I find it so expensive and a bit confused whether I am doing something wrong.

I used the Google keyword tool to generate some keywords. Chose those that were estimated Avg. CPC to be about $0.11.
But they were not activated with a comment asking me to raise minimum bid to $15.

I don%26#039;t quite understand why when it is only estimated $0.11 per click and yet asking for $15 now. Can you help tell me why or what I am doing wrong? Or is it a standard thing to ask for $15?

Also I obliged to $15 minimum bid and its been two days and still not a single click. I believe $15 is a way expensive bid and yet I don%26#039;t seem to be gaining any traffic.

Btw is the $15 amount for per click or wat? What am I doing wrong?

The keywords for reference:
1. free targeted website traffic
2. increase web site traffic for free
3. free traffic to my website

Do advice please. Your help greatly appreciated.

Good Luck

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