Summarize:

Either directly before or after warming, get out a pastry brush and apply melted butter to the tops of the rolls. This will help the rolls to retain some moisture and will also add taste to the final product. If you are concerned that the rolls will have a plain flavor, then select a number of fresh herbs. Chop them up finely. Sprinkle them on top of the rolls prior to baking. Some of the best herb options are oregano, rosemary, and sage. You can also choose herbs that will complement the rest of the meal. For example, if you are eating potatoes as well then dill might be a good option. The reheating process can leave some rolls tasting stale. To counteract this, get a pinch of sea salt and place it on top of each roll. This will add a bit of texture and flavor to the roll. It may also make it possible for the rolls to last longer after reheating.
Brush them with butter. Drizzle with herbs. Add a pinch of salt.