6. Ask Questions
Challenge the other person to defend their argument. Ask for examples or specific reasons for the stance your partner is taking. They may actually re-examine what their beliefs.
7. Know the Facts
If you’re discussing, say, the budget, have the information in front of you. Don’t say, You spent too much on clothes. Instead show them the exact dollar amount and mutually recognize the overage. Sometimes you’ll win the argument simply by having the facts at hand