I often tip for coffees but much less often for liquor.

At the shop, not at a bar, where I never ever go.

When I had a favour rendred by the almighty or the universal energy acting on us all, I tip bigger than usual or tip at all.

I was given a blessing, so I share it, sorta thing.

To me it makes much sense.

I feel a certain balance in my kind motivation and gratitude which benefits strangers. we are all interconnected they have been saying for milleniums.