tipping "counter " staff

[JoeH]

There is a tip jar at the local pizza place, almost stereotypically run by a Greek-American family and serves Pepsi, not Coke. If I go in and just order and take out an item, no tip. If I phone in an order for pickup and ask for something special, then I might drop a dollar in. When I go in, place an order and sit down, then I will tip because they bring the food to the table and don't charge until we are done and know how many drinks to add.