Oscar,
Can you describe a bit more about what you're trying to do and what is, or isn't, working? If you're posting your contact to Facebook and the title, description, or images aren't showing properly, please make sure you have the Open Graph - Content (or any other 3rd party open graph plugins you may need) enabled. Once enabled, those should automatically set the good Open Graph tags for your content.
However, please note that it may take a few days for Facebook to see the new tags. You can use the
Facebook URL Debug Tool
to test what Facebook sees immediately.
I hope that helps, but if not, describe things more and we'll gladly help however we can.
Thanks,
Alex