alicia silverstone blue dress Los Angeles, California, USA 25th March 1996 Actress attends the 68th Annual Academy Awards at Dorothy Chandler Pavilioin on March 25, 1996 in Los Angeles, California, USA. Photo by Barry Bodycon Midi Dress Black Size:12/L Long Sleeve Lace Dress

alicia silverstone blue dress Los Angeles, California, USA 25th March 1996 Actress attends the 68th Annual Academy Awards at Dorothy Chandler Pavilioin on March 25, 1996 in Los Angeles, California, USA. Photo by Barry Bodycon Midi Dress Black Size:12/L Long Sleeve Lace Dress

Bodycon Midi Dress Black by Nissa

The key is ensuring your cocktail dress looks polished and special-occasion appropriate rather than casual

Long Sleeve Lace Dress

Size:12/L

Let us know by tweeting @CosmopolitanUK Jess Edwards is Cosmopolitan UK’s Deputy Editor, working to deliver the very best experiences across the brand's platforms (print, social, video, digital), products and events, including a focus on our membership offering, Club Cosmo