That depends. Why are you disagreeing? Are you trying to look better than them? Some people disagree and correct others because they are insecure and need to prove their superiority.
The bottom line is kindness and gentleness. (Yes men, gentleness is manly). No one wants to be disagreed with or be corrected, so walk softly. How about “I see what you are saying, but I think….” or “I’m sorry to disagree with you, but…” or “How about this scenario, …”
These show respect for the other person and will lead to a better relationship and fewer offenses.