Long, purposeful steps convey confidence and self-assurance.
One leg crossed over the other at the knee can be a stylish and commanding way to sit, frequently demonstrating authority over the area around oneself.
A deliberate or unintentional flirting gesture can be made by slowly crossing and uncrossing the legs.
It can be amusing and sensual to gently brush one leg against the other or dangle a shoe off the toes.
A lady can draw attention to her curves and project an attractive appearance by standing with one knee slightly bent and shifting weight onto the other.
Being defensive and uncomfortable
Tightly crossed legs, particularly when the arms are folded, might be interpreted as a defensive or closed-off demeanor.