Katie added some festive chic to her outfit wearing a white one shoulder white top, gold trousers and towering peep toe platforms.
The 32-year-old couldn't stop beaming from ear-to-ear as she posed with copies of her book Start Your Day With Katie, which she was signing for guests at the trade show held at EventCity
Katie married fiancé Richard Sutton on Friday 6 November. The inspirational charity campaigner wore a custom made lace wedding dress with a two-tier veil by design duo Kolchagov Barba.
Katie said in a statement: "Second only to the birth of our daughter, marrying Richie has been one of the best days of my life and I am so happy to have shared it with my close friends and family."
She also tweeted the day after tying the knot: "What an amazing Friday yesterday was - I got married! Thank you for all the lovely messages what a kind bunch you are x."
Bodyshockers presenter Katie got engaged to carpenter Richard in December. The couple welcomed their first child, daughter Belle, in March 2014.
Try Reveal's digital edition on iPhone & iPad. Subscribe now & never miss an issue!