You cant optimize the clicks as it is always dynamically decided by the Adsense engine. I think, the clicks from the US visitors will produce good earnings.
When opportunity is in front of you, don't hesitate to catch it. It will never come to you again. - Maverick
iF YOUR SITE/BLOG CONTENTS VERY GOOD CONTENTS THEN GOOGLE WILL PROVIDE OR GIVE HIGH PAYING ADS IN YOUR SITE THROUGH WHICH YOU CAN eARN HUGE MONEY JUST FROM A SINGLE CLICK.
MAY BE around 2 cent to $15
