Usually, whatever the bill is me and my friends just double it. We like to joke and make friends with the waiter waitress, get em laughin out of their ordinary fakeness of being nice all the time and saying fuck like they really want too. Sometimes they just come sit with us for like 15 mintues, kind of weird but its cool, free drinks whenever we go back next, but we like to tip.
Ha, almost forgot, its happened twice now, the waitress will ask me for my number as a tip, thats tight.