If you like privacy as well as light or are looking for the effect of a cafe curtain with the opaque coverage of a shade, install a roller shade to the lower windowsill instead of in the traditional mounting location in the upper part of a window frame. To close a shade mounted in this orientation, you just pull upward on the shade's bottom rail or pull chain and secure it to a hook mounted higher up the window frame.
Place the mounting brackets for the shade onto either side of a window's lower windowsill. Mark the location of the pre-drilled holes with your pencil by pushing the tip through them.
Drill pilot holes with a hand drill that measure half the diameter of the screws supplied with the shade.
Place the brackets back in place and secure them with the screws and a Phillips-head screwdriver. Do not forgo drilling the pilot holes -- windowsills are usually made of hardwood and the soft screws supplied with the mounting hardware strip easily.
Secure the blind to the brackets by first placing one end of the blind into one bracket and then by pushing on the blind to flex the bracket so you can place the other end into the second bracket.
Pull up slightly on the bottom rail of the blind and drill a hole through it that measures large enough to accept the end of your hook. The bottom rail is usually made of a wooden strip, so it is easy to drill through.
Drill a pilot hole into the bottom inside board at the top of the widow frame or the midpoint of the frame if the window is comprised of two panes, and insert a threaded hook into the hole.
Pull the blind up to the top of the window and slide the hole in the bottom rail over the hook.