Facebook Delay
A dirty little trick to hide how long you've been sitting on Facebook like a brain-dead potato waiting for someone to message you.
You saw the message at 10 a. m. You replied at 8 p. m. You're a beast.
She posted on your wall at 11 a. m. You replied at 9 p. m. You're a legend.
He sent you a message at 12 p. m. You replied at 10 p. m. You're a god.