Keywords for blogger

Dear forum fellows this may be very useful for newbies to know that How many keywords are sufficient for a blogger?

For example my blogger is http://pak-online-jobs.blogspot.com/

For what keywords should I optimize my blogger?

Thanks in advance

 

Using google ad words tools , find out which one is best for your blogger .

 

keyword is very important part of every website , you select always related to make
your key for a website, for a blogger use the 3 to 4 times on your blog.

 

.,a single keyword is enough but optimize every pages of your websites using related keyword.

 

Ok,let I have 3 keywords for homepage, 3 keywords for first post and it continues.... Is that way all has to be done? your guidance please

 

Keyword strength should not be more than 2% of the total content....