In Scrum Master Tip – Many Voices I listed a few things to try if your team meetings are dominated by one person and you want to hear from the others in the team.
On a similar note, I’ve found the following tips useful to Team consensus on decisions.
Issue to Avoid
Failing to get buy-in from the whole team on important decisions.
Why is it a problem?
If someone doesn’t agree with a decision, they are unlikely to follow it. At worse, they will become unmotivated and disruptive and slowly drag the team around them down.
I try to save these alternative techniques for the important decisions and fall back on the simple consent check of “does everyone agree?…ok then, decision made” for day to day things.
With all of these solutions, there’s a risk that the more timid members of your team are copying the dominant person, so keep an eye out and if need be, split the group up.
After 3, everyone gives a thumbs up or thumbs down. other.
Vote with your feet
Imagine there is a line along one wall where one end is agree and the other is disagree and ask the team to stand along the wall depending how strongly .
Use planning poker cards where a higher number is more agreement.