What does the idiom wore a poker face mean?

meaning behind poker face   Dan meaning of poker face song

This idiom refers to the common practice of masking one's reactions while playing poker If the other players can read your emotions, it will be harder to beat

a face without any interpretable expression Informal a face without expression, as that of a poker player attempting to conceal the value Click for English pronunciations, examples sentences,

ipx-904 Poker Face” was really about…Poker Face I mean nothing, other than that adding a manual to the is “technically possible ” Herr Hofstetter has an excellent poker face, however He