The blogger on El Francotirador shares  [es] his experience on a fast food shop, when as the waitress gave him the coffee he had ordered, she added:
“There you go… I drew a heart with the foam” – she said smiling.
As a result of this gesture, the author reflects:
I stared at the coffee, with its white heart that was slowly losing its shape, and I couldn't help it but felt mine squeezing. You see, I've always regarded with a mix of compassion and fear the jobs at the fast food shops […] as prisoners who have to carry out the same chores, once and again, day after day, to serve perfect strangers, indifferent and many times rude.
But there we have a girl that, in spite of the fatigue at the end of her shift, she drew me a heart with the foam.
I don't know if she did this to make my day or hers, but it worked in both ways and it proved that when you have a happy, lively or creative spirit, those gifts might blossom even the most hostile environments.