sit down with (?.)

• advise with
• bargain
• call in
• collogue
• compare notes
• confer
• confer with
• consult
• consult with
• counsel
• deliberate
• discuss
• discuss with
• exchange observations
• exchange views
• have conversations
• hold conference
• make terms
• negotiate
• palaver
• parley
• powwow
• put heads together
• reason with
• refer to
• sit down together
• take counsel
• take up with
• talk over
• treat with