Definitions: (1) exciting, and then holding, attention or curiosity; attractive; mesmerizing; (2) able to stimulate great desire to learn; thrilling; captivating; (3) able to arouse insight into new aspects; multifaceted; (4) showing acute enthusiasm; avid

• Happiness goes like the wind, but what is interesting stays. — Georgia O’Keeffe (1887-1986) American Artist
• The secret of happiness is this: let your interests be as wide as possible, and let your reactions to the things and persons that interest you be as far as possible friendly rather than hostile. — Bertrand Arthur William Russell (1872–1970) British polymath [four disciplines]

Suggestion: Being genuinely interested in what is wonderful in others will excite them to exhibit the best of themselves; thus, inspiring you to find novel ways to help them feel free to grow and show their endearing qualities.