We speak of someone having "cold eyes" or a "warm smile". Now it seems there's a very real connection between the temperature people feel and the way they act toward others.
Science magazine reports on an experiment in which some students held a hot drink and others a clod one. Then a person was described to them. Later, the students were asked whether they would describe that person as good or bad. Those holding the hot cups were more likely to say positive things.
A second experiment using hot and cold therapeutic pads brought even clearer results. Students holding the hot pads were twice as likely as those with the cold ones to react to others in a positive way.