How can change my display name to other chat user in chat room when I will go into the chat room?

To change your display name, go to this link:

http://manage.members.yahoo.com/youruser



Replace ';yourusername'; with your Yahoo! ID. Once your in your profile, click on ';Edit Profile Information';. Where it says Nickname, type the name you want to be displayed in the chat room. When your're done just click on ';Save Changes';.