It's important not to assume anything. That can end up making you look bad. You don’t want that. Trust us. We’ve been there. Too many times.
Remember that respect begins with what you're telling yourself, so make sure you're telling yourself that you're worth being shown respect and respecting others.
As you approach the person who offended you:
*CONFIDENT SMILE (think Will Smith in "Hitch" or Salma Hayek as herself or Drew Barrymore in "Ever After")
Maintain that posture throughout the conversation.
You could start the conversation with, “When you say this (fill in the blank).....it makes me feel like (fill in the blank). What did you really mean by that?"
The more you approach situations this way, the more natural it will become and the more authority you'll exude. The point isn't to dominate or to be submissive. It's to resolve a difference.
How comfortable are you in using this approach?