The 16 Candles Badge

To get the Foursquare 16 Candles Badge you will need to send five birthday shoutouts, with the text "Happy Birthday" (without the quotes) to your friends on foursquare. Most people say that you have to check-in when doing the last shout in order to get the badge.

Foursquare 16 Candles Badge Quote: "Treat yourself to another cupcake – that's 5 birthday shoutouts from you!"