How Do You Know If You Found A Good Keyword?

Here are my 4 "rules" for deciding if a keyword is viable:

1. The keyword is gramatically correct.
2. Searches or avg is greater than 50.
3. Compoetition or QSR is less than 300.
   
4. There is at least some traffic.

Let's analyze our search results for hiking tips for beginners. Is "hiking tips for beginners" a good keyword?

Let's Check The Keyword Rules:

1. hiking tips for beginners is grammatically correct.
   
2. Avg is greater than 50.
3. QSR is less than 300.
4. There is some traffic.

It looks like hiking tips for beginners is a pretty good keyword! So now what?