Interesting trends on call to action

My desire to learn something new led me to a road where I stumbled upon interesting facts on how call to actions is used worldwide. Call to action is quite common jargon for a search engine professional specialising in pay per click or pay per lead. But for the lay man it is in simple words.
“Phrases or words which allure a person to take action“. In other words it is calling one to take action on the ads as said. Some of the worldwide used call to actions is ‘buy now’, order online, buy now, order online.
I’ve attached some screen shots on this issue.
Hopefully it would be quite handful