I don't frequent fast food places too much but do try doing things in grocery store checkout lines for others. Buy the cashier a candy bar or give them a piece of fruit (usually bananas) that I'm buying. If there's a person in line they get the same treatment. Last week a really nice older lady in front of me didn't have a discount card so I asked the cashier if she could use mine. Knocked off 11 dollars!
Random acts of kindness is something I hope we can all continue to do. We have to stick together.....