When viewing the profile, some people in mobile mode were not using or finding the message and conversation tabs efficiently.
- Messenger - a quick, direct chat with another person - private view
- Conversation - a PM or DM, more like an on site email - private view
- Follow - this allows you to follow their posts, pics, updates, etc
- Add Friend - This allows you to request them to be your friend.
- Block - This Blocks them from your viewing your profile
- Update - this is posted to their profile for public view