Question About Facebook Friend Request?

[cailou :]]

I'd send him a message. If it's been a really long time (like you haven't seen each other since high school), it is highly likely he may have forgotten who you are. (No offense, but that's understandable, you know?). Even if you are not facebook friends, you should be able to send messages, so I'd send a friendly message reminding him of who you are and about how it's been a while and you'd like to catch up.

Making your profile public is up to you. Know that you can choose which parts of your profile you make public and the people that you want certain parts visible to. It's pretty flexible in that sense.

Keep in mind that, if it has indeed been a long time, he may or may not feel the same way, if he even remembers... but best of luck to you! Hope it works out :]