title: How to print variables values in Robotframework log
body: <p>I have a RF test and I need to print the variables values, not the name.
  I am trying with "<strong>log to console  Num:  ${Num}</strong>" but log.html only shows:</p>
  
  <pre><code>**KEYWORD** BuiltIn . Log To Console Num:, ${Num}
  Documentation:  
  Logs the given message to the console.
  Start / End / Elapsed:  20170209 12:14:05.273 / 20170209 12:14:05.273 / 00:00:00.000
  </code></pre>
  
  <p>I already tried to setting log level (TRACE, DEBUG) but didn't work.
  I appreciate some help, thanks.</p>