Proper practice for keyword tag

I've seen a few examples of how to set out the keyword tag, but i was wondering which one is correct. For example if I my page was about poker hands and rules which way would I do my keyword tag:

poker hands,poker rules,poker OR
poker,hands,rules OR
poker hands rules

Also, should there be a space after the commar, and should there be a commar at all?

Thanks to anyone who can clear this up.

 

Any of those would be fine I reckon.

 

Ok, thanks mad4.

 

The format I use (and see most often on other sites) is "poker, hands, rules". I'm not sure if the space makes a difference or not, but I use it simply because it's what I'm used to seeing.

HTH,
Sam

 

Ive always used "poker, hands, rules" too.
I have seen a couple of times "poker,hands,rules" but not often.
Stick to what the majority do and you should be safe

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Thanks for the replies, I'll stick with what you suggest.

Thanks again.