2. Tape the print to the center of an 18 x 24" piece of paper.
3. Lay an 18 x 24" piece of tracing paper over the photo/printout.
4. Using a ruler, trace ALL the straight lines of the buildings and streets, continuing them as they go back and converge at a vanishing point. Do this for all orthagonal lines.
5. Using this method, locate the horizon line and the vanishing points.
6. Your final drawing will be a series of many, many straight lines on an 18 x 24" paper. Be prepared to speak about the process, what you discovered, and anything that you found confusing.