That's when you point the telescope at the sky and hope you see something.
Like last night. I didn't want to set up the LX200, so I took the little 6" dob into the back yard with my red flashlight and Star Atlas. I did pretty good on M81 & M82, but totally failed on the Leo Triplett. To be fair to myself, the transparency was only so-so, 6 inches isn't a whole lot of aperture, and my star-hopping skills are practically non-existant.
Meanwhile, here's a new design at CafePress!