The basics: Thank you notes when receiving a gift. Daily or weekly age-appropriate chores. Taking turns and learning to be patient, like not always first to play a board game or pick the movie for family to watch. Helping for the sake of helping, not to get an allowance or something they want. Each night she names three things she is thankful for before bed. Make gratitude and empathy something you discuss and demonstrate each day.
Generosity can be taught well with physical things: taking $5 out of their piggy bank, choosing a few items at the store and dropping them at the food bank. Shoveling the neighbor's walkway.
Empathy can be taught by talking. "Your classmate Larlo needs a little extra care and that is why he has an aide in the classroom. How nice he has so much support" "Your sister missed the party because she is sick; let's make her a get well card to lift her spirits." "Your friend was sad because she was left out of the game; your feelings would be hurt too. Why don't you go ask her to play with you?"
Appreciation can be taught by example and pointing out the kindness "Thank you, Larla, for setting the table. That saved me so much time and I appreciate it." "That was so nice of the man at the store to let us go ahead of him in line, wasn't it?" "I appreciate our neighbor bringing in the garbage can while we were away so let's bake him cookies to say thank you."