That is a very nice suggestion. However, being a female, it is much less practical to put into practice. I shudder to think what would happen if I would wish Mexican workers a good day…
How about the mexican, or indian cashier (who might happen to be a lady) a nice day, there are numerous women you can do that to, too
And I fully agree with WIY it does make you (rather me) and feel in a better mood too.