The document discusses day hikes or small proof-of-concept projects that can be done with xAPI to demonstrate its value. It provides three example day hike use cases: 1) using xAPI to track more learning data than SCORM, 2) creating a personal learning diary or hypomnema to bookmark and comment on learning resources, and 3) creating a personal learning checklist to track both formal and informal learning experiences. The document also provides guidance on how to design xAPI solutions, including considering the nature of the learning experience, transactions, context, initiator and evaluation.