I always grab a drink and a snack, head to my room to unpack as the muster video plays, once unpacked we check in at our muster station. Typically I’d go reserve the enclave/thermal suite right away - but I’ve noticed my last couple cruises it’s cheaper to do it online ahead of time so no need for that anymore, but we do go to check in with them, get the tour and our goodie bag. Then typically grab another drink and walk around the ship if it’s our first time on it and eat lunch when we get hungry.