to be waiting eagerly to hear about something
BE ALL EARS
wishing someone good luck
BREAK A LEG!
you only just succeed in doing sth,
BY THE SKIN OF ONE'S TEETH
to suddenly become too frightened to do something you had planned to do, especially something important such as getting married
TO HAVE COLD FEET
to be very expensive
TO COST AN ARM AND A LEG
to try to persuade someone to believe something that is not true, as a joke
TO PULL SB'S LEG
