In a nutshell...
Courtesy Be kind, no need to yell and scream.
Gratitude (when they are helpful let them know they are appreciated and important, that their contributions to the family/household matter)
Assistance - If they need help provide it or find someone who can
Self-confidence Help them feel capable and confident but not entitled and bratty.
Self-sufficiency teach the value of work and earning rewards for a job well done - not just handing them everything they want
Cooperation - don't be a dictator work with them.
Attention - the biggie, be there for them and don't just feign interest. put down your phone and the TV and talk to them, make eye contact, engage.
Adventure - Don't just settle into a humdrum existence, travel, see new things, explore, read, learn a new language - whatever is challenging, lets them learn and keeps their heads out of game systems for hours a day.