How do you switch between saved passwords in Chrome?

[oveniacjm]

I have two separate Twitter accounts. Both passwords are saved onto my Chrome browser. But one is always already filled in. How do i quickly switch between the two?

In Firefox its blank until you type in the first letter and then it will let you pick one.
Whenever i go to Twitter there is one account already in the boxes. its always the same one (the one i use the least)

[InternetFan]

You just sign out, then sign in using the second account and then it should be all filled it whenever you type the first letter of your username.