When you've got nothing better to do!
Social media has changed the way we celebrate birthdays. It’s likely that instead of sending a card, your friends will email or put a short birthday message on a Facebook wall. Rather than becoming another bland message on a digital wall, try to find something amusing or interesting to post to make the person smile. Nothing says you care like taking an extra 5 seconds to be a bit more original.
Image source: Funny Birthday Images blog