The stunning 25-year-old catwalk queen, who is dating actor Jason Statham, said she hates the idea of getting drunk with people she does not know, reported Femalefirst.
"I'm a lot shyer than people realise, especially around people I don't know. It makes you really hold on to the special people. I've never felt comfortable in big social groups or going to crazy parties.
"I've always been able to see the difference between work and personal life. I don't try to take my career or myself too seriously, but it's important to be responsible," she said.
The British beauty is a household name and has her own lingerie range, Rosie for Autograph, as well as being the face of Burberry and a newfound film career with a role in 'Transformers 3' and the upcoming 'Mad Max: Fury Road'.