Costco has clear systems. When you get to the checkout, you hand them your membership card, they take your cart and start scanning items. Or wait, do you push your cart? All I know is everyone there knows the process, and let me tell you, if you don't, you will slow everyone down by not being ready to follow it.
It'd be one thing if that's how every store did it, but it's not.
Trader Joe's? Double bags only, push the cart behind the cashier, get ready for cheerful small-talk.
Local produce market in Vermont? Make sure to enter your phone number so you can get discounts and an emailed receipt. Bring a reusable bag or get side-eye.
Self-checkout at a large chain? You better put those items in the bagging area, not directly in your bag!
While you may have a preference for one of these processes, none are right or wrong. They are just collections of norms for how to move through the checkout.
Just like every grocery checkout line, every meeting already has norms. They often differ meeting to meeting (definitely org to org) and much of the time they are implicit not explicit. When everyone knows the checkout process, the line moves faster and the customer feels comfortable coming back. If you want to avoid your team feeling like me at Costco (intimidated!), it helps to set norms explicitly.
At an organization I used to work for, one strong norm was use of the word "check" to signal agreement. Instead of "I completely agree with what Dora said because blah blah," which eats time and adds little new information, people would just say "check." If the meeting leader wanted more detail, they could call on someone who checked. If not, they could use that quick signal of agreement to move on.
When I first joined, I had no idea what was happening. People kept saying this one word and I was lost. It was the Costco checkout all over again! Over my years at that org, I watched it happen to every new person who walked into a meeting for the first time. The norm worked brilliantly, but only when someone took the time to explain it. For example, at off-sites and project kick-off meetings, we would set norms from scratch, and "check" was often one that got named explicitly. What made it work wasn't the norm itself, but the practice of regularly and explicitly setting it.
Before your next meeting, ask yourself
What's one meeting norm that works well for your team? How might you make it (and its purpose) more explicit?