ACR MLG CLRED TO HOLD CON VOR L TURNS FL370. CAPT WAS ON #2 VHF WITH DISPATCH REGARDING PLAN OF OP. WHEN BACK IN THE COCKPIT HE SET UP THE HOLD PER CHART WITH A R TURN. FO HAD FAILED TO ADVISE OF THE L PATTERN. CTLR QUESTIONED THE DIRECTION OF TURN AFTER 1 CIRCUIT. NO CONFLICT AND THE FLT DIVERTED TO ALTERNATE.

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CLRED TO HOLD AT CON NW ON 300 DEG RADIAL; L TURNS; 2O MI LEGS; FL370. FO COPIED HOLDING INSTRUCTIONS AS I WAS TALKING TO DISPATCH ABOUT THE WX AT PWM (WHICH WAS NOW BELOW MINIMUMS) AND OUR POSSIBLE DIVERSION TO BGR; WHICH WE EVENTUALLY DID. UPON RETURNING TO MY PF DUTIES; WAS TOLD OF OUR INSTRUCTIONS BY ATC BUT HE NEGLECTED TO MENTION L TURNS INSTEAD OF THE PUBLISHED HOLDING PATTERN WHICH WAS R TURNS. I ENTERED THE HOLD AND AFTER 1 COMPLETE PATTERN; ATC ASKED US IF WE WERE IN THE HOLD OVER CON L TURNS. WE REPLIED THAT WE WERE HOLDING AS PUBLISHED; IE; R TURNS AND THEN THE FO TOLD ME IT WAS L TURNS AS HE HAD WRITTEN DOWN BUT FAILED TO TELL ME THAT IT WAS L TURNS. THERE WAS NO CONFLICT. WE APOLOGIZED; AND REQUESTED AND RECEIVED A CLRNC TO BGR. ATC STATED THAT THERE WASN'T A PROB AND WE LANDED AT OUR ALTERNATE. THIS WAS CAUSED BY A VERY HVY WORKLOAD AS ALL THE SURROUNDING ARPTS WERE GOING BELOW MINIMUMS OR WERE CLOSED FOR SNOW REMOVAL. IN THE FUTURE I WILL ASK MORE POINTED AND DIRECT QUESTIONS AS I RE-ENTER THE LOOP. THIS WAS ALSO THE FIRST DAY (THIRD LEG) I HAD FLOWN WITH THIS FO AND I WAS OVERCONFIDENT IN HIS ABILITIES. I NEED TO BE MORE VIGILANT! SUPPLEMENTAL INFO FROM ACN 363490: THE CAPT SAID HE WAS BACK SO I TOLD HIM THE HOLDING INSTRUCTIONS. HE PROCEEDED TO BUILD THE HOLD IN THE FMC. UPON ME REVIEWING THE ENTRY IN THE FMC I NOTICED HE HAD ENTERED THE WRONG INBOUND HDG. HOWEVER; I DID NOT NOTICE THAT THE TURNS THAT CAME UP ON THE FMC WERE R. AS WE ENTERED THE HOLD THE CAPT WAS BACK ON #2 RADIO WITH COMPANY. WE DID NOT REALIZE OUR MISTAKE UNTIL ZBW ASKED US WHAT WE WERE DOING.