Invisible Touch

Well, I hope it will be invisible when I’ve finished!
I’m taking a potential new car out for a test drive tomorrow morning. The garage had already seen my current car and given me a part exchange value - not quite as much as I wanted, but acceptable if the new car is as good as it looks in the pictures.
However, whilst out shopping today, I noticed a new scuff on the edge of the door. A perennial hazard, given we have a brick wall down the edge of the drive - though I don’t remember catching it recently! Fortunately, due to previous encounters with said wall, I have a touch-up paint of the correct colour.
They might not have spotted it, but don’t want to run the risk of having the p/x value reduced. Besides, correcting these sort of small blemishes was something I used to do for a living, and it’s nice to see if I’ve still got the old skills!