My Photographic Diary of Usability Cues

The big tape X's or stickers people put on sliding glass windows...

The crossed-out numbers on paper next to a calculator...

The reason people do the things they do might not be obvious at first.

That is why we, as usability researchers:

1. Observe

2. Refrain from assuming

3. Ask "why did you do that?"

These are the kinds of insights that A/B testing can not provide. Let's advocate for more field studies!