Light a match and make a wish. If the match burns as long as you can hold it without breaking off, you will get your wish.
If two persons begin to speak on the same subject at the same time, they link their little fingers; and whoever names an author first and makes a wish will have her wish granted.
If you find a fallen eyelash, place it on the back of your hand and make a wish. Then turn the hand upside down three times, and if the eyelash stays on, you will get your wish.
Children make a wish when they see a white horse.
The first time you kiss a new baby, make a wish, and it will come true.
When you first see a new-born baby, make a wish, and you are sure to get it.
---Wintemberg & Wintemberg, "Folk-Lore from Grey County, Ontario," The Journal of American Folklore, 1918
"If you don't know what PR is in medical greek, don't ask."