The Submate app strives to facilitate real-world connections with the people that surround you. The app -- which is free to download for iPhone users -- is super simple to use: enter a trip that you occasionally take and fill out some general interest criteria. After that, you just sit back and wait for the app to return relevant results.
When the results list pops up, you have the option of looking at who the Submate app has selected and contacting them if you want to get acquainted. The Submate app is an excellent means of breaking up the banal commute and introducing an element of the unexpected encounter in your life.