Andy Samberg impersonates Mark Zuckerberg at F8 2011 (Video)

Facebook CEO Mark Zuckerberg, left, watches comedian Andy Samberg, right, of Saturday Night Live, gesture during the f/8 conference in San Francisco, Thursday, Sept. 22, 2011. (Paul Sakuma - AP)

Andy Samberg put on a hoodie and pulled out his Mark Zuckerberg impression to open Facebook’s f8 conference Thursday.

Before Facebook’s actual CEO announced major changes to his social networking site (that are leaving many less than pleased), the “Saturday Night Live” actor revealed some of the new features.

They include the “I’m Not Really Friends With These People” section and the “Slow Poke,” which gives a user 24 hours to take back a poke.

Eventually Zuckerberg came out to confront Samberg. It was a little awkward. Watch the bit below.