Just you need to follow few steps :-
1. Open the Skype homepage. Click on the “Join Us” link in the top-right
corner of the page
2. Choose how you will log in.
3. Enter the required information.
4. Indicate how you plan to use Skype.
5. Come up with a Skype Name.
6. Create a strong password.
7. Choose whether to receive mail from Skype.
8. Enter the CAPTCHA.
9. Read the terms and policy
10. Download and use