Preintervention analysis and improvement of customer greeting in a restaurant.

The team worked with servers at one restaurant. Staff were forgetting to greet customers at the door.

First the researchers watched. Only 6 out of every 100 guests got a hello. Then they added three things: a door chime that rang when someone entered, a manager who stood nearby, and a quick group huddle with a simple graph showing each shift’s greeting score.

The chime plus manager lifted hellos from 6% to 63% in one weekend. When the crew saw their own bar on a chart and heard ‘great job, let’s hit 100%,’ greetings reached 100% in just two more shifts. The change cost almost nothing and took minutes a day.

Jones et al. (1998) ran a similar feedback loop across an entire disability agency. Their managers also gave quick verbal updates and saw staff-client talks rise. The restaurant study shrinks that big program into a single doorway.

Phillabaum et al. (2023) copied the graphic-plus-verbal trick with ABA techs. Low cleaners saw their bar next to high performers and quickly matched them, just like the servers did.

Austin et al. (2006) used a poster and a ‘thank you’ to make drivers stop at a campus sign. The same prompt-plus-feedback recipe works for hellos or stop signs when the cue is clear and the praise is instant.

You can steal this package tomorrow. Pick a behavior you can hear or see right away, add a simple cue, stand where staff can see you, and end the shift with a two-minute chart and a cheer. It works with neurotypical adults in any public setting and needs no tokens, money, or extra training.