It's just a game
Basically be nice - and share a greetings with others since you may not see them again. This is the way we do it at home. When we pass someone on the sidewalk or across the street. Greet them with a wave or nod your head or in this case chat Hi & good fortune. Don't waste your chance until the game is over. Here it's just a game so do the same! If you like this way - let me know. All the best in your endeavors!