When I was in the supermarket before, a woman pushing a baby carriage came in the store after me. I took notice of her because she looked nice, but not friendly. As I did my shopping, I saw her a few times, on various aisles. At one point, she was on one aisle and I was on an adjacent one, and I knew she was next to me even though I couldn't see her because I was able to hear her baby playing with a squeaky toy.
At the checkout area, I took note of one of the items this woman planned to purchase. It was coffee, instant coffee. This item stood out to me because instant coffee is not by any means popular in Germany. The plastic lid of the jar containing the coffee was green.