The quality of being pleasant, kind, and showing goodwill toward others; the state of being approachable and warm in social interactions.
From Old English 'freond' (friend), related to Germanic roots meaning 'to love' or 'to favor.' Added the suffix '-liness' (quality of being) to create the noun form for this personality trait.
Psychologists discovered that dogs and children can actually measure friendliness in humans by reading micro-expressions that appear for just 1/5th of a second—our faces literally can't hide how we feel about people, which is why some people are naturally good with animals.
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