Grist's Umbra Fisk offers up advice on greening your shower routine. Shower with friends! Turn the shower off when you soap up! Well, doing both of those would probably increase the awkwardness. It might be kind of like when you're at a party and everybody's having a conversation and then the music sort of eerily drops out.
Except that you'd also be naked and soapy with your friends.
OK, take it away, Umbra: