Ethical search engine optimisation techniques that are encouraged by the search engines.

White hat seo is for long term and black hat gives short term boost. Basic white hat SEO is building back links in ethical manner not spamming!

I feel let us understand about “black hat SEO” completely before knowing about white hat SEO. This gives a clear distinction and guides us in a proper route which is needed for ethical SEO.
The dubious techniques that violate search engine guidelines forms black hat SEO. Few examples for those techniques are cloaking, sneaky redirects and invisible text. Cloaking is nothing but a black-hat practice of serving one page to a human visitor and another to a crawler. Cloaking is considered serious spam and strongly rejected by the search engines

right , it is said that google opens a half eye towards it

In search engine optimization (SEO) terminology, White Hat SEO refers to the usage of SEO strategies, techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies. For example, a Web site that is SEO optimized, yet focuses on relevancy and organic ranking is considered to be optimized using White Hat SEO practices. Some examples of White Hat SEO techniques include using keywords and keyword analysis, backlinking, link building to improve link popularity, and writing content for human readers White Hat SEO is more frequently used by those who intend to make a long-term investment on their Web site. Also called Ethical SEO.

Hi

Under white hat seo there come lot of things to name a few are unique content, quality back links(nt spamed websites or sites that are nt related to your theme) dnt do keyword stuffing. Its better u go and find some articles regarding this that will depict the more clear picture

What seo is the way we promote website without violating search engine rules.

In white hat SEO we follow the ethical way to promote website, placing website in useful, relevant and traffic generating resources.

for me, it means u don't do things which will made G thinks u are intending to dominate or spam it

and one thing more, u don't do you eyour good at the cost of others