Correct speech
Use more polite expressions to make "hello" and "thank you" a mantra. Mandarin travels all over the world, away from swearing, and elegant communication is barrier-free.
Living habits
Keep your appearance clean and tidy, wash your hands, wash your hair and cut your nails frequently, and don't spit or litter. Eat slowly, don't make any noise, don't be picky about food, don't be partial to food, don't waste it, and use public chopsticks when eating with many people to show table manners.
feel thankful
Cherish the warmth around you and learn to return. Reward those who bring you sunshine with sincere smiles and actions.