Luckily these "grounds" we speak of are very walker-friendly. When it comes to finding your friends, though, things can get a little confusing. "You're by the red brick building? Me too?!" Try using Tag. In one easy click Tag allows you to send a picture/video + geolocation to specific friends or lists of friends so you can say what's up and get directions. This free app is hands down the best way to meet up with all those new friends you are making, and a lot of fraternities and sororities use it to send out invitations. Think snapchat but actually useful.