Three studies examined the hypothesis that people have subsets of self-knowledge corresponding to their close relationships. Study 1 showed that the degree of positive judgment about one's "self-with-othcr" traits varied depending on who the other was, suggesting that participants referred to various subsets of self-knowledge for making judgments about themselves with different others. Study 1 also suggested that one's knowledge of "self-with-other" has positive values. Therefore it was supposed in Study 2 that visualizing one's father and thereby spreading activation, increased the positive rating of trait judgments about one's own self-with-fathcr. The results showed the predicted pattern, but did not indicate clear evidence for knowledge activation. Study 3 examined whether the visualizing effect would be observable on processing for only that subset information which corresponded to the visualized person. Those who visualized their fathers did not increase their level of positive judgments of their "self-with-other" traits for themselves with a close friend. However, contrary to expectations, those who visualized a close friend had significantly increased positive ratings of trait judgments for themselves with their fathers. The implications of activating the evaluative self-knowledge that corresponds to interpersonal relationships are discussed.