When you are at work, it should not be artificial: it is interfering with your colleagues must have best regard must apply a gentle. Not joking together while working may affect employment, work is not good.
When at work Do not talk loudly It will disturb colleagues. Must have regard Must use polite words Do not tease each other while working This may result in a job. It works out badly
When at work, should not talk loudly, because it will disturb the colleagues must have regard building? Need to use polite words. Don't tease while at work. Because may affect work, work out bad .