It's what you do "on wood" after making a boastful statement
knock
For boxers, it's unlucky to be the first to enter this area
The ring
Best not have one of these on stage; if it breaks, it's 7 years bad luck & it also interferes with the lights
a mirror
A wish made on the candles of one of these won't come true if you tell it aloud
a birthday cake
When you give one of these to a man, a coin or bill should be in it so he'll never be out of money
a wallet
If you lose an eyelash, put it on your finger, do this, then blow it away
make a wish
It's bad luck in this sport for a dog to cross the diamond before the first pitch
Baseball
Hopefully it won't really happen, but instead of wishing an actor good luck, tell him to do this
break a leg
This part of a bird is broken & the person who gets the larger part gets his wish
wishbone
If your left hand does this, money is coming
itches
Buy a car on this unlucky day & it'll spend most of its time with the mechanic
Friday the 13th
Avoid faults by never holding more than 2 balls when serving in this sport
Tennis
Never say the name of this play in a theater or there may really be "double, double toil and trouble"
Macbeth
"I wish I may, I wish I might, have the wish I wish tonight" is said upon seeing one of these
a star
A groom may give a bride a penny to wear in this for good luck
a shoe
These grotesque stone figures acted as drain spouts as well as sentinels to frighten away evil spirits
gargoyles
Serena Williams famously wears the same pair of these during a tournament, washing them only if she wins
socks
For safety reasons & to ward off resentful spirits, don't turn off the light called this
the ghost light
You can make a wish when you see 3 birds on a telephone wire or the first one of these birds in the spring
a robin
Turn over a silver coin in your pocket when you see this heavenly body & your wish will come true
the Moon
For this to come true, you should never tell of it; specifically, before breakfast
a dream
Gone fishing? Don't reveal this until you are done for the day
Your catch/number of fish you caught
Never carry one of these feathers on stage--the evil eye may curse the show
a peacock feather
A rhyme says "Touch" this color "and your wish will come true"
blue
Carrying a coin with this year stamped on it is supposed to bring you good luck
the year of your birth