Three colors to avoid are battleship gray, brown and pea green. At your next party, try high illuminations of pink and gold to increase your party guests conversations, while subdued lighting tends to elicit a somber mood. In your office, make sure you have adequate overhead lighting as well as task lighting to properly illuminate your workspace, but keep in mind that the dimmer the lights the more comfortable people feel. Optimal temperature indoors is between 62 and 68 degrees. There is a higher incident of aggression with higher temperatures.
Lower temperatures affect people more positively.
Workers are better able to focus, therefore production increases. Certain sounds like white noise, waterfalls, frogs croaking, or crickets chirping promotes relaxation. Irritating noises that are constant causes tension in the work environment. Furniture arrangement such as a desk facing the person can be a barrier to communication. It also denotes a more formal workspace.