How do you clear the user names that will come out when you log in to twitter? [Not Deactivate Account]?

[Kisha]

Please help me because I typed the my password in my username and maybe someone would see it

[Umashankar]

So, are you using firefox or Chrome? Doesn't matter if you are using either one. Go to Tools or Options or whatever you find there and delete / clear the recent browsing history. Select everything there- browsing history, bookmarks, ACTIVE LOGINS etc etc everything.

P. S.: If you are using your accounts ( any ) from any public computer, then try to browse Private Browsing. CTRL+SHFT+P (Firefox) is the shortcut. So, when you browse it in PRIVATE BROWSING it won't store / remember anything.