@USA1pilot
book some fixed base 737 sim hours,they'll definetely help.
focus on CRM, be a good teamworker, exaggerate if you have to.
they gave me a high altitude WX and asked me about the things that appeared there, what is a load sheet and why does the captain fill it, segments after t/o: why and what's the obstacle clearance altitude (1500' AGL), he pointed to a plug on the wall and asked me about what type of current do we have there and why don't we have DC in the houses, do we have AC in the airplane?
those I can remember being asked.
good luck!