Stationery. I always stop at stationary section at shops to look at pens, fountain pens, pencils, mechanical pencils, pencil holders notebooks.

Simple utility tools: axes, shovels, rakes, various types of knifes, crowbars, big wrenches. I have no use for these things, but love to stop and hold them whenever I'm in a hardware shop.

Making coffee. I have a manual grinder and one of those V60 ceramic filter holders for filter coffee. I enjoy everything: from weighing the beans, to grinding, to pouring water slowly over the grounds.

Crows. I've been carrying shelled peanuts with me and whenever I see them I toss some. It's amusing watching them. Some recognize me, come close and expect peanuts in return.