- Shoulders drawn back
- Persistent eye contact (staring)
- Arms crossed over the chest
- Sweating
- Hands clenched to make fists
- Swaying back and forth
- Grinding Teeth
Ref: http://www.bodylanguageexpert.co.uk/what-negative-body-language.html
From the list there are only a few that I could apply to Foxy's character. In particular I feel that the persistent eye contact would be perfect as she will be focusing on Sonny throughout the animation. Standing to close to someone also came up, this is something that makes people feel uncomfortable. As the eyes seemed like an important part of negative body language I decided to look into it further.
From the research I conducted I found that narrowing the eyes gives a scowling impression, this instantly gives the feeling that you do not like the person you are looking at. Which is ideal for foxy and Sonny's relationship.
Ref: http://www.marcandangel.com/2008/07/07/25-acts-of-body-language-to-avoid/
Overall I decided that by combining the body language of a cat and that of a human my character would give an impression more suited to the villainous ways.