Using Only Their First Name :
Many people don’t know that you can friends in statuses using only
their first name. This also works for comments and pictures as well!
1. Tag your friends as you normally would by inserting the @ symbol
followed by their name and clicking on their profile on the dropdown
menu as shown.
2. Insert your cursor directly after their last name and begin deleting their last name.
3. Your friends first name will remain highlighted in gray as shown, meaning it will properly tag them in your status.