Show your work while it is still happening, not just the finished result. The effort people can actually see makes the end product feel worth more. So the batter going in, the build half-done, the flowers being wrapped, all of it is worth posting, because the visible work is part of what people are buying.
Researchers found this directly. When people could watch the work being done for them, they valued the result more than when the same result appeared instantly; the effort they could see added worth of its own (Buell and Norton, The Labor Illusion, Management Science). We trust and value what we have watched being made.
Pancake Day is a simple example. A photo of a finished pancake is fine, but a short clip of the batter hitting the pan and the toss is better, because the effort is right there on show. You can see this on the Pancake Day run-up: the flip is not filler, the work people can see is part of what they are buying.
This is also the easiest kind of post to make, which is the quiet bonus. You do not have to stage anything. You are already doing the work; you just point the camera at the middle of it instead of only the tidy end. The dough being kneaded. The van being loaded at six. The chairs going out in the sun. The half-painted wall. Ordinary work, shown honestly, is genuinely interesting to people who do not do it themselves.
There is a trust dividend, too. Anyone can post a perfect photo of a finished product; it could be from anywhere. Showing your own hands doing the actual work proves it is really you, really made here. In a feed full of polished adverts, the honest behind-the-scenes shot stands out precisely because it is plainly real.
A joiner makes good use of this. A photo of a finished bookcase is nice, but it could be a catalogue picture from anywhere. A short clip of the timber being cut and the joints going together proves it was made in his workshop, by him, for a real customer. The watching is what turns “a nice bookcase” into “a nice bookcase I saw being built”, and the second one is the one people remember and recommend.
A caution. Half-made does not mean sloppy or careless. Show effort and craft, not a dirty kitchen or a corner cut. And keep it honest: show the real process, not a staged version dressed up to look humble. The point is to let people see the genuine work, because the genuine work is the thing worth showing.
The short version: do not only post the finished result. Show the middle, the making, the effort, because people value what they have seen being made, and the behind-the-scenes shot is both the easiest post and one of the most convincing. Point the camera at the work in progress, and let people watch you earn the result.
Point the camera at the work while it is still happening, not only at the tidy end. Open What should I post?, tell it what you are making and where you are up to, and put up the caption and the words for your picture it gives back.