A warm room and hot coffee allows us to look warmer on people.
One group of people watched a movie inside a room where the temperature was set at a cool 15 to 18 degrees Celsius.
Meanwhile, a second group sat to watch a movie in a warmer room where the temperature was set to 22 to 24 degrees Celsius. The group in the warmer room felt socially closer to the experimenter. It is also interesting to note that they also used more concrete, natural language to describe the film.
Researchers achieved similar effects with hot coffee.