fraternisation

noun fraternisation

• intercourse — dealings or communication between individuals, groups, countries, etc.
• partying — a social gathering, as of invited guests at a private home, for conversation, refreshments, entertainment, etc.: a cocktail party.
• collaborating — to work, one with another; cooperate, as on a literary work: They collaborated on a novel.
• involvement — to include as a necessary circumstance, condition, or consequence; imply; entail: This job involves long hours and hard work.
• relations — an existing connection; a significant association between or among things: the relation between cause and effect.