What is the first step in On page optimization?

[Crystal21]

1 Optimize your site for search engines.
2 Frequently update the contents of your site.
3 Take advantage of social bookmarking sites.
4 Use your Twitter and Facebook accounts.
5 Get links with other sites in your niche.
6 Go on sites like listingdock, seoclerks etc and hire some expert for it.
7 Create a free product or service.
8 Use viral content.
9 Use offline promotion.
10 Include your URL in your signature.