Originally Posted by daveps
Apologies for dredging an oldish topic up but if you want to mount a USB stick via OTG cable and do not want to root you can use an app called Nexus Media Importer. Only snag is it costs cash, there is a free app Nexus Photo Viewer which you can use to verify that your OTG cable and stick are compatible before purchasing the full blown importer.
Disclaimer : I haven't used this, I use StickMount as I am rooted.
I plan to get the 32GB version, so none of this will be necessary. This monkey refuses to dangle his dongle in public. Much too embarrassing.