Customs in making wishes?

I've kinda been curious. So in the German culture it is said that you can for example make wishes when you see a shooting star, catch an eyelash landing on your cheek, blow off all the seeds of a dandelion at once or blow out all candles on your birthday cake. Same goes for jinx and some other occasions.

So I was wondering how it works for Japanese customs? Are they similar? Or are there different traditions? I did hear about shrine or temple related once, though I'm not sure if I am informed correctly. And I read about the Tanabata festival. But I would be curious about trivial ones, maybe for children, as well :)

The shooting star and blowing out all candles on your birthday cake have been imported into Japan, so to say, that we practice that in Japan.

The eyelash one I'd never heard of, and yes, kids blow off all the seeds of a dandelion but not related to wishes.

There is a huge list of "lucky happenings" in the Japanese custom. We call it "engi ga ii", and a lot of it is related to New Years which is supposed to present the whole year you're now facing.

Just as mere examples, if the first dream you saw this year was about Mt. Fuji, your luck is the best. Second best is a dream about falcons, and third is about egg plant. This New Year's Day was great for watching the first sunrise which was supposed to offer you good luck. If you missed all that (among many many others) you can still eat some "seven herb porridge" on January 7th, to treat yourself to good health.