7. Make eye contact and look directly at people./tip 6 .

Nora A. Murphy, an associate professor of psychology at Loyola Marymount University in Los Angeles, has done extensive research in this area, which suggests that "one of the strongest and most accurate signs of intelligence is looking at others when you are speaking to them," she told The Wall Street Journal . "And put away that phone."

'Tip 6' to look intelligent.

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