Quick SEO help

Hi Guys,

I have a website running cubecart. I am Just wondering how you choose the keyword to put in your website description, and what should go in the H1 tag. Once I have these then I will know exactly which keyword to target.

I have had an seo expert do keyword research for me but he sent me a word document which has lots of words surely i should not be targeting all of these should I?

Thanks

I Did not find my answer in these stickies not the google section anyway.

I basically have 51 key phrases totalling 170 words. Im just asking is it normal to target so much keywords?

Thanks

I would say target 4-5 keywords only for starting.