The available recommender algorithms all leverage past behavior. However, if you have a small amount of it, you can augment your recommendations by using other information you have about your items and your users. Check out the documentation for the
item_side_data arguments in <a href="http://graphlab.com/products/create/docs/generated/graphlab.recommender.create.html#graphlab.recommender.create">graphlab.recommender.create</a>. You can also read more about this in the <a href="http://graphlab.com/learn/userguide/index.html#ModelingdataRecommender_systems">recommender section of the user guide</a>.
If you have more questions, please let us know.