In this matchmaking activity (on page 2 of the PDF under GPS: Animal Scent Activity), learners will each have a scented cotton ball taped to their shoulder. The scent (e.g. peppermint oil or almond extract) will be kept secret by an adult while the participants walk around silently, sniffing each other's cotton balls in search of anyone sharing the same scent. Relates to the linked video, DragonflyTV GPS: Animal Scent.