Higher Clickthrough Rates

Search engine optimization isn't just about showing up number one on search engines. Rather, it's about getting the all the traffic that you deserve from the search engines. If you rank #6 for "free hats" and you and your competitors forget to include that in the page's title tag, chances are, the person doing the search won't see much difference between your site and the others.
However, if you were to change your website's title text to target your most important keyword phrase "free hats", then when someone completes the search for "free hats", they'd see your site show up in bold. This technique will greatly increase the user's desire to view your site first, as your site looks much more relevant and targeted.

Hello

CTR can only be effective when you are using the keyword that the member of audience is searching for.
At that time it will show highlighted if you have used that particular keyword in your tags.

Thanks
A2zchild