make/pull a face	show that you do not like something by making an unpleasant expression
keep a straight face	not to laugh or change your expression even though you want to laugh
put a brave face on sth	pretend you are happy about sth when you are not happy
take sth at face value	accept sth as it looks without thinking about whether it might, in fact, not be quite what itappears
on the face of it	according to the appearance of sth
face to face	with another person in thair presence rather than, say, by phone or letter
keep your hair on	calm down
be tearing/pulling one's hair out	be getting very anxious
not turn a hair	show no reaction at all
be at each other's throats	be arguing in a very angry way
make a clean breast of it	tell the truth about what one had done so that he did not feel guilty anymore
breath down one's neck	pay close attention to what sb is doing
get it off your chest	tell sb you feel guilty
ram it down one's throat	force one to listen to my opinions
give sb the cold shoulder	ignore sb in a deliberate way