I give $100 each year to the lap sap lady in my building who works very hard for very little money. She is very appreciative and she probably divides it up and gives it to her family or maybe buys a $20 meal.
Give Lai See to the cabin crew? You have got to be joking. They would complain it was too little from the rich Captain no matter how much I put in the red envelope.
Give it to the people you see everyday that need it, there are plenty in HK.