While most of these are for the service industry this can be applied to retail as well. I see so many people being so awful to other people and I don't understand why. A little kindness can make someone's day.
  1. Without them you couldn't enjoy your night out, vacation, dinner or shopping trip.
  2. Please and thank you go a long way
  3. Snapping your fingers or waving your arms obnoxiously will not get your server/bartender/sales associate over to you any faster. In fact it may take them longer because of it.
  4. Having some empathy and understanding that everyone is going through shit and sometimes people have off days
  5. Trying to score free stuff - whether it be drinks or free food is never a good idea.
  6. A little bit of kindness goes a long
  7. If you want something extra be prepared to pay for it. Prices aren't set by the workers - it's set by mangers. And they can't change them.
  8. People can tell when you feel superior to them. So don't.
    Suggested by @biz
  9. Holding the door for someone is just a nice thing to do.
    Suggested by @katherinelee
  10. Moreover, even if you're friends with the bartender/bouncer/server, don't feel entitled to free stuff or extra attention. This is their place of work, respect that.
    Suggested by @racytracee