Depending on how you use it, Facebook may be the epicenter of your online persona. Between photos, life events, and status updates, anything and everything you want your friends (and sometimes strangers) to know can be be found all in one place. And depending on how you curate it your timeline, you can be your own publicist.
Because of that, you can broadcast a completely different life than the one that you have: lost your job? It's okay, put an inspirational quote up about new beginnings and say you quit. Staying in tonight? Take a picture of your computer and say you're "working on big things," before you put on Netflix and eat a pint of ice cream. Don't take people's Facebook lives too seriously, things aren't always what they seem.
