Buy a comprehensive travel guide of Rome. A good guide will have detailed maps of the city and maps of any public transportation. It should also have a bit of history about each landmark as well as descriptions of Rome's culture and people.
Peruse the guide looking for points of interest that appeal most to you.
Make a list of the places you would like to see then find them on the map.
Decide how much time you have to spend and plan accordingly. Most walking tours, even when you're setting your own pace, will take at least 2 to 3 hours (so wear comfortable shoes).
Highlight each point on your map and plan out the best route to get from A to B to C. Then, find a suitable place to begin your tour. Remember, you're on foot so plan tours of sights that are reasonably close together.
Read about each location's history in your guide as you walk from point to point.
Take pictures of each landmark. Try taking pictures of things from unusual angles and distances to add interest to the photos.
Keep a journal of your tour, making notes about each place. Write down your first impressions, what feelings a particular place evoked or what you liked most about something as a way to remember the experience.
Repeat the process as many times as you'd like, changing the route and destinations each time. Because Rome is so large you will definitely want to focus on specific sections of the city for each tour.
Research Rome before you go so you know what parts of the city you most want to visit.
Find a tour agency that provides walking tours. This is easily done by searching the Web for walking tours. Most agencies offer various tours that cover different parts of the city. Some of the tours have themes as well.
Book the tour of your choice. Generally these tours can be booked online, in advance or you can often meet at the starting point and pay on the spot. Most tours are reasonably priced and offer discounts for students and children.
Get directions to the starting point of the walking tour and be sure to arrive on time so you don't miss guide.
Take your camera and your travel journal to record your walking tour experience.
