Which line in this excerpt from "The Lady of Shalott", by Alfred, Lord Tennyson describe actions taken by the Lady of Shallot to defy the curse?

"With a steady stony glance-

Like some bold seer in a trance,

Beholding all his own mischance,

Mute, with a glassy countenance-

She look'd down to Camelot."

These are the lines that depicts the Lady of Shallot defying the curse. Previously, she has heard a voice saying that a curse will befall her if she looks down to Camelot and in those lines, it shows that she is defying the curse by looking down to Camelot with a steady and stony gaze.

With a steady stony glance

Like some bold seer in a trance,

Beholding all his own mischance,

Mute, with a glassy countenance

She look'd down to Camelot.