play close to the vest

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Play Your Cards Close to the Vest
Biosimilar Pioneers Play Their Strategy Cards Close to Vest
Retailers Hope for Best, Play Close to Vest for 2012
Developers play it close to the vest at casino conference
Play Things Close to the Vest; Sharing Not Needed
Wayans, Sandler Don't Play `Bulletproof' Close to Vest
Giants play it close to the vest
Mutual fund investors play it close to the vest
Baylor will play it close to the vest vs. Notre Dame.
Jets Play It Close to Vest on NFL Draft