Seek out pack rats.
Cancers form emotional bonds with everything that crosses their paths.
Often unable to throw anything away, they can frequently be found hoarding such valuable treasures as a pair of gym shorts from junior high. Notice those who have a strong relationship with their parents and immediate family. A friend who places a high value on familial bonds is likely to have been born under the sign of Cancer. Look for highly volatile emotions ranging from impenetrable sadness to overwhelming joy. Cancers wear their hearts on their sleeves, and their emotions can change from one moment to the next.