Do some preliminary planning. Take into account any relevant factors. Figure out how much space you want to dedicate for this purpose and which of your windows would work best for a nook. Perhaps one is too close to a door, which may block entering and exiting, while another may have a better view or is in a more out-of-the-way location. Measuring out the space and thinking about all variables before you begin helps ensure that you can successfully create your window nook.
Separate the nook. Blocking off the new space from the rest of the room can add to its restful feeling. Hang a curtain, which can be opaque or sheer, depending on how much privacy you want. Arrange furniture so it separates the area. Use a folding screen, available in styles from basic to elaborate Japanese shoji screens.
Another good way to block off a window nook is to use a temporary wall, a structure which in addition to providing the division you want, is also attractive, sturdy and easily moved around.
Arrange the main furnishings. Use pieces that are not only comfortable, but are also the appropriate size and function for the window nook. If you plan to eat in the nook, purchase a bistro table set. A small desk unit and chair create a little office. If you just want to put your feet up and read a good book, use a comfy reclining chair or chaise lounge. Add an accent table on which you can place a glass of wine or a snack.
Accessorize the window nook. Add touches such as a floor or desk lamp and a potted plant. A fitting idea for a reading nook is a small tabletop or wall-mounted water fountain, which brings in the soothing sound of running water. Add pops of color with an accent cushion, slipcover, rug or vase of flowers. If there are curtains on the windows, coordinate the colors you use in the nook with the shades and hues in the curtains.