Anna Faris wears a short short jacket.
If you are petite try not to wear long coats or jackets.
Short jackets make your legs look longer and therefore your body figure slimmer.
Look at the difference with Gwen Stefani, the UK singer has an amazing body and we cannot see a thing here with these many clothes covering her.
I found another picture of a different star wearing the kind of jacket that are ideal to make your body look taller.
Another good trick of this beautiful lady below is to wear a top with a V neck that makes her look taller.