we introduced her by her full name (Victoria Kathleen) and followed that immediately with the statement, "We're calling her Tori Kate." My grandparents still refuse to use the nn and call her Victoria, but that's fine. We were really trying to avoid the nn Vicky. We have a 99% success rate - I have one acquaintance who *still* refers to my DD as Vicky, but it could be that we speak so infrequently that she honestly forgets I dislike Vicky, and although I do make a point of stressing "Tori" when I speak with her, I don't jump down her throat. :o) Generally, if you start calling your kid something other than his/her name, friends, family & acquaintances will follow your lead.