Organizational citizenship refers to a behavior that is determined by employees on their own initiative and is not included in the formal work requirements of employees, but it will undoubtedly promote the effectiveness of the organization. According to the above definitions, what are the following organizational citizenship behaviors? ['Xiao Wang commutes on time.', 'Xiao Wang often helps his colleague Xiao Li to take care of his sick father.', 'Xiao Wang likes collecting stamps and has made many friends.', 'Xiao Wang is often asked by his boss to work overtime.']