If find that dogs, children, women, and NT people are more interested in what I am doing. They are engaged-by and follow motion. Show yourself being so preoccupied by your special interest, that you have forgotten the presence of the camera.
And, whether you are statuesque, photogenic, or a monster, you will be happy, then and there.
If you have a strange haircut or sense of style, also, take care of it, to your liking, before recording an image. People put lots of effort into the worst or cheapest cars, so presumably want to be driving them. I've heard people compliment the Pinto. If your shoes suck, at least clean them, etc. Show the pride of ownership.
Take pride in yourself or what you are doing.
There is no need to be a good actor.