How to change a name on Instant messenger?

as i am texting in my instant messenger window to a contact, my full name appears, how do i change that to my username, i do not want contacts knowing my actual name, and this does come up in the messenger window, i need to know how to change this. thankyou...

i have yahoo i.m. and when i sign in it shows my yahoo user name. how can i change my instant messenger name without changing my yahoo email name?

I need to change the name at the top of my instant messenger from my maiden name to my married name how do i do this.............Help and Merry Christmas

I am having a hard time trying to change my name at the top of my yahoo instant messenger it says hewitt and should say goralski how do I change it?

i just don't want my full name on display in my instant messages,i can't seem to find how to change it back to just jenney

when I made my profile I put my name on it now it shows my real name when I instant message how do I fix this problem please

I have my last name in my Yahoo Instant Messenger name, and I don't know how to take it off. Help, please?

I don't know how I managed this but instead of my name one of my contacts names appears when I'm on line and when I send IMs it shows the other persons name How do I edit that and change it back to my name. I checked thro' every Yahoo page and help page...

I need to change my display name while chatting with others.