Businesspeople in Perth are generally less formal than in Melbourne or Sydney. Smalltalk and humour are welcome and most people prefer to be addressed by their first names from first acquaintance. However, a high standard of dress is expected – even in markedly hot weather. Perth people have a strong service ethic and 'not a problem' is a frequent reply to any request. Work-related socialising (in the form of picnics, barbecues or cruises) is common and alcohol will flow freely. Similarly, liquid lunches come with the territory. However, smoking in any indoor place should be stringently avoided by visitors, unless they are invited to do so. Normal business hours are weekdays 0900-1700.