Think of the person viewing your ad

Are you creating ads today?  There are some important elements of ad that really help to increase performance:  

• grab attention
• give them a call to action (click, buy, like, follow, etc.)
• and...
  

When you are creating an ad, keep in mind that you need to answer the question "What's in it for me?" Why should I Like your Page or click to your website? 
Even if I am familiar with your product or service, why would I want to subscribe to your newsletter?  I already get a ton of email.  
Why should I follow you on Twitter?  WIIFM!  
Convince people seeing your ad of the value of taking that specific action. 

If you can quickly answer this in your ad copy, you will find better ad performance! And get a better return on your ad dollars!