Answer in Details
1. Practices Bhakti (Devotion): Genuine love, worship, chanting of His names (like "Om Namah Shivaya"), and meditating upon Him are powerful ways to invite His grace.
2. Leads a Pure Life: Following truth, non-violence, self-control, and compassion aligns one with Shiva’s ideals.
3. Displays Detachment: Shiva is the supreme yogi, and detachment from worldly desires is seen as a path to attract His blessings.
4. Seeks Self-Knowledge: Shiva encourages the pursuit of self-realization and understanding of the inner Self (Atman).
5. Surrenders with Faith: Total surrender (Sharanaagati) and accepting both joy and sorrow as His will is said to please Shiva.
The Shiva Purana says:
"He who worships Shiva with a pure mind, and seeks Him sincerely, will surely be blessed by His compassionate glance."
Ultimately, Shiva’s grace is unconditional and beyond logic. With a pure heart and steadfast devotion, one naturally comes under His loving gaze.