The words are often used with definitions that differ greatly. Can we get these defined as we can observe in biology?
Make yourself at home.
Thoughtful. Colorful. Spirited. Engaged.
Mean. Argumentative. Abusive. Profane.
Or more eloquently stated by William Shakespeare:
Conversation should be pleasant without scurrility, witty without affectation, free without indecency, learned without conceitedness, novel without falsehood.