Most casinos offer complimentary alcohol, coffee and soda to anyone who is gambling, but reserve meal compensation for loyal customers, email subscribers and people who spend notable amounts of money on gambling. Food is usually considered the second tier of comps, offered before hotel stays, airfare reimbursement and show tickets.
Casinos give comps in order to build customer loyalty, so the first step to receiving free food is to sign up for a player's reward card. After receiving a free card, players slide it through a card reader or leave it on the table for a pit supervisor to retrieve. Casinos typically base giveaways on a player's anticipated losses, although many comps come as a result of a customer requesting them.