I came across Miranda July's video and app project, Somebody on Facebook and let me tell you, it was a breath of non-techy-app fresh air! If you could just pause what you're doing and start downloading it on your phone right now you'll be all set to use it at the end of watching the video and reading this.
Basically, Somebody allows you to send your friends messages delivered by strangers who are around them, when you're not around. The more people that have it, the more people that can get their messages delivered. So download it now and who knows, maybe we'll be delivering messages to each other soon!
P.S. Miranda says you can email her a selfie with you and your Somebody messenger to firstname.lastname@example.org