Talking on the telephone lacks that certain something called visual feedback. When you’re not able to give and receive as many cues conveying enthusiasm, boredom or even anger, your body reacts, says Ken Fogel of the Chicago School of Professional Psychology.
“When someone is present, you’re not the only one holding on to these emotions. They’re passed back and forth,” he says. “But on the phone, it’s like you’re juggling a hot potato and you can’t pass it to anyone.”
Walking transfers that emotion to a physical action.
Don’t fight it – studies show that fidgeting, pacing and other unconscious movements can contribute to a greater total calorie burn than formal exercise does.