need help in understanding pnp

[deepti_k1]

i have submitted my express entry profile. i have selected all provinces. crs points 400. how should i apply for pnp through express entry or a province would select me through express entry.
please help

 

[bellaluna]

http://www.canadavisa.com/canada-immigration-discussion-board/summary-of-eligibility-requirements-for-all-express-entry-pnp-streams-t432937.0.html

 

[ashuindian]

Saskatchewan
http://www.saskatchewan.ca/residents/moving-to-saskatchewan/immigrating-to-saskatchewan/saskatchewan-immigrant-nominee-program/applicants-international-skilled-workers/international-skilled-worker-saskatchewan-express-entry