only just in time, almost too late
the eleventh hour
to delay something for your advantage
buy time
alert and efficient
on the ball
really expensive
cost an arm and a leg
pretending to be serious but really joking
pulling my leg
listening carefully
(to be) all ears
make decision about people based on what they look like
judge a book by its cover
really annoying
pain in the neck
really easy
a piece of cake
to be very nervous and anxious
butterflies in one's stomach
avoid answering a question
beat around the bush
to agree
to see eye to eye
reveal a secret
let the cat out of the bag
time feels like it's going really fast
time flies
really enjoyed something and had a great time
whale of a time
rarely, almost never
once in a blue moon
without having to think carefully
off the top of my head