breast one's cards
restrict
relieve
unbosom
leave to the imagination
keep
screen
tell all
hush up
be not to know
keep quiet
keep one's mouth shut
shut one's mouth
secret
conceal
keep to oneself
oversight
give away
blackwash
cover-up
information hiding
palter
under the radar
prevaricate
tergiversate
equivocate
beat around the bush
keep one's cards close to one's chest
data hiding
keep from
strangle
muffle
stifle
draw out
repress
smother
spare someone the details
suppressed
leak out
hiss-and-tell
closelipped
encryption
confidence
secretive
befog
tightlipped
unlearn
revealing
closemouthed
telltale