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When you’re at a cocktail party, you have to dress appropriate for the event like you would for any other event. There is no other way around that! The most important thing to remember when getting dressed for this occasion is to wear something you can drink and keep warm in because it can get cold at times. Here is a video that explains how to dress appropriately for this occasion.
I hope this video helped give you all the tips needed to shine at cocktail parties. Good luck!