extroversion (n.)

• accessibility
• ambiversion
• approachability
• candor
• communicativeness
• complexion
• cyclothymia
• ectomorphy
• endomorphy
• frankness
• freeness
• humor
• introversion
• mesomorphy
• openness
• outspokenness
• plainness
• schizothymia
• sociability
• somatotype
• talkativeness
• unconstraint
• unrestraint