I bought a Michael Kors tunic/dress very similar to this top in print and make- http://www.polyvore.com/michae.....d=12583851

It has an elasticized neck like the one shown here. My question - how do I make sure this dress stays off shoulder and does not slip up? I wore this at home to 'test' how long I can make it stay that way and the max I came up with is 4 minutes Tried wearing it 'on' shoulder instead but the neck is cut too close and looks 'meh'!
Any tricks up your sleeve?