keep a lid onkeep a lid on itkeep a lid on somethingkeep a lookoutkeep a low profilekeep a man downkeep a mental notekeep a notebookkeep a pen and paper handykeep a person companykeep a person in suspensekeep a positive outlookkeep a promisekeep a recordkeep a record of somethingkeep a scrapbookkeep a secretkeep a sharp eye onkeep a stiff upper lipkeep a straight facekeep a strapkeep a tab on sbkeep a tab on sthkeep a tally of sthkeep a temperkeep a tight reinkeep a wary eye onkeep a weather eye openkeep above boardkeep abreast ofkeep abreast of the situationkeep abreast of the timeskeep accountkeep accountskeep afloatkeep afterkeep aheadkeep all citationskeep aloftkeep aloofkeep an appointmentkeep an ear to the groundkeep an eye onkeep an eye on herkeep an eye on himkeep an eye on itkeep an eye on somethingkeep an eye on sth sbkeep an eye outkeep an eye out for
