put our/your/their heads together
To work together to come up with an idea or solution. If the two of you put your heads together, I'm confident you'll figure out a workable solution. Don't worry, we're putting our heads together to come up with a catchier slogan right now.
put your heads together
If people put their heads together, they try to solve a problem together. If there's a problem, we all just sit down, put our heads together and figure it out.
put your heads together
consult and work together.