I Don't recommend trying to lug a photocopy paper box full of red and black books onto the bus because it will get heavy and awkward fast. It makes it easier to move your stuff and set up fast. If you can, it is good to table with your back to a wall so you can put up a banner with the name of your group or organization. It makes you more visible so people are more likely to check you out. The books go like hotcakes.
Most people only take one or two to check out but, are reluctant to take one of each.
At that event, I left the most radical stuff in a box for those who expressed an interest when I talked with them. Some tabling is slow. Other tabling is more lively. It all depends on the event and who shows up. In addition to music shows and political events, I recommend tabling on college campuses.