Social observation
Staff can record introductions, shared handling, conversation, cooperation, co-presence, offered or accepted invitations. The event description identifies the particular activity and available evidence. Researchers compare this material with existing relationships.
Two people can meet for the first time around a tool. Acquaintances can discover a new shared question. Friends can perform a familiar routine. These cases support different claims about an institution's contribution. Staff ask about earlier contact when needed and avoid treating every co-present pair as a new relation.
Social observations can support trust inquiry, group casting, longitudinal comparison. A shared task may produce a repair without further contact. A disagreement may prompt sustained work. Researchers preserve participants' separate judgments and later behavior while examining the proposed mechanism.