I tip. Drivers frequently seem a little surprised, but smile and take it.<p>However, while we are on the subject of tipping...<p>I'm pretty put off by tipping for counter service. You order at the register, when your food is ready, you pick it up at the register.<p>But these Square and similar systems provide the business with the ability to but tip options on the menu: 10%, 15%, 20%, ... A particular ice cream shop in Palo Alto, and a particular Middle Eastern eatery in Fremont come to mind. Yes, you can skip the tip, but I worry about my next visit...<p>There are also 1/2 service businesses where you order at the register and they bring the food out. You still get the big buttons with several tip options, and that's a little easier because at least they are doing something to earn it, but 20% to bring me my food? 25%?<p>What do you folks think about this? Do we tip them because, hey, they can't possibly survive in Silicon Valley without 25% on a scoop of ice cream?