Does physical warmth engender psychological warmth?

"... people are more likely to judge others as combative and argumentative after they have assembled a jigsaw puzzle whose pieces have a sandpapery texture."

"We found that the participants who had recently held the warm coffee cup rated the person as being warmer, more generous, more sociable and more caring, compared to people who'd held the ice coffee."

http://whyfiles.org/shorties/271warm_hand/