Her dance aside, it was her confidence that won that race. The big smile on her face just says "i'm going to smash this", which she did. You could be the most well disciplined athlete out there but if you're not prepared mentally you wont get anywhere.
The woman who sneaked into indias opening parade was quite nice. Another fiasco to add to the growing list. Having displayed our humour at the opening at least by the closing people will understand the reason for it.