Facebook Mobile and Desktop Apps · Accessibility. Finding Friends. Find Your Friends. How do I add a friend on Facebook? To add a friend: Click the search. I keep running into this issue: Someone posts an interesting link or recipe or story and I read it and keep scrolling. A few days later, another friend me. Im trying to find this guy i met yesterday. i dont know his name, but i know he has a facebook and lives in sacrameto, CA.