Candid photography is far from being a speciality of mine (if I indeed have a speciality) but walking the streets observing and capturing people going about their day is something I find myself having a go at more and more lately.
It’s certainly a confidence builder.
I do like it when you see someone completely immersed in their thoughts or activity. Much easier for the photographer too.
I find it good to try out on folks reading at cafe’s or sitting on benches. You’re usually less likely to get noticed, though the resulting pictures can sometimes be less interesting.
Plenty more practice needed I think.