Per uber, there are no slow days. Just turn on your app and make money!
With that said, it's a crap shoot out there. We can't control the rider requests, only where we will be and hope for the best. Just go to where the riders are, restaurants, hotels, apartments. Don't park next to another driver, and so on. Move from area to area every 15 minutes, unless you love sitting for 1 hour and see what happens.