How to change display name on yahoo messenger?

how do i change the display name? When i message someone they have a name like umm.. kity lover or something and i just have my email.. how come how do i change it ? i tried almost everything v.v i even went to contact details and update mine though it changed the display name and stuff it also added myself as a contact.. can someone help me plz?How to change display name on yahoo messenger?
Click on ';Account Info'; which is in the drop down menu (on your email page) by your username where it says ';Hi, ____';.



Sign into your Yahoo Account. Go to the section ';Account Settings'; and click on ';Manage your Yahoo Aliases';.



Click on ';Add an Alias';. Type your alias in the box provided and then click on ';Save';. You can have up to 6 aliases. Click on ';Close when finished';.



When you IM someone, pick the name you want to use in the drop down box above where you type next to ';Send As';.



Alternatively, you could just change your current name by changing your Contact Details. To do this, click on ';Messenger'; in the top left hand corner of the Messenger Window. Click on ';My Contact Details'; and change your name in the top boxes and change your name under ';Nickname';. Click on ';Save and Close'; at the bottom.How to change display name on yahoo messenger?
Select '; Yahoo! Messenger'; from the main menu.

then select my contact details.here you can change your name to whatever you want.