Select Menu > Apps > Apps and games > Social, and sign in to your relevant social networking services.
With the Social application, you can enhance your social networking experience. The application may not be available in all regions. When signed in to social networking services, such as Facebook or Twitter, you can do the following:
See your friends' status updates
Post your own status update
Instantly share pictures you take with the camera
Only those features that are supported by the social networking service are available.
Using social networking services requires network support. This may involve the transmission of large amounts of data and related data traffic costs. For information about data transmission charges, contact your service provider.