Casual friends are individuals with whom one shares a friendly relationship but lacks deep emotional connections. These friendships often involve socializing in group settings, participating in shared activities, or enjoying light conversations without the expectation of significant personal investment. Typically, casual friends may not know each other's personal lives in detail and may not rely on each other for support during challenging times. Instead, they provide companionship and enjoyment in social situations, such as parties, sports events, or hobbies, making them a valuable part of one's social circle without the intensity of closer friendships.