Now go outside and find a nice sunny spot to place your sundial, where it won't be disturbed.
Place your gnomon in the center of where you want to build your sundial. At the top of the hour (ie. 10 am, not 10:30 am), align the string with the shadow of the stick, so that one end of the string starts at the gnomon. Place the appropriate time marker at the other end of the string.
Continue placing time markers, with the help of the string, at each subsequent hour of the day.