Best options for short (and business time involved) trip to SF

I'm not sure which round that was, but I know you paid for one. I was just wondering who paid for the other since I don't remember paying for either one. 

I might be that they did add one round of drinks it to the bill for the table. This will make me feel better because when I paid the bill, I added a tip out of habit. If we paid the waitress in cash for both rounds before I went up to pay for the table, then that cashier got a tip for just taking our money.