How do I add keywords to my website?

Related questions

1. Are long tail keywords better?
2. What is impulse response of a system?
3. How do I find my LSI keywords?
4. What is the basic difference between LSI and VLSI?
5. What are core keywords?
6. What is LTI and LSI system?
7. What is meant by LSI keywords?
8. How do I find the best long tail keywords?
9. What are semantic keywords?
10. Can keywords be more than one word?

Tags

1. #business
2. #inside
3. #optimize
4. #easiest
5. #including
6. #pages
7. #section
8. #search
9. #quickly
10. #insert
11. #keywords
12. #about
13. #website
14. #relevant
15. #engines