It's inevitable, at some point in time you will break a spoke. Whether it's out on the dusty trail or commuting to class. It can happen at any time, anyplace, and most likely nowhere near a bike shop. No worries though, it's not the end of the world or the end of your ride. Simply follow a few steps and you can be on your way!
1st: Identify your broken spoke
2nd: secure the broken spoke (by wrapping it around the closest neighbor)
3rd: if possible, open your brakes enough to prevent wheel rub (with disc brakes this is not an issue)
4th: Carry on your merry way (a stop by a bike shop is encouraged before setting out on your next adventure)
Take a look at the pictures below