How do you chat in your own words in roblox

You need to get a parental account for your ROBLOXian's account!
So you would log off your main account
Click 'Register'
Check the spot where it says 'Parental account'
And create an account
Now log in to your parental account
And go to 'Add a user'
Now type in your main accounts username and password
Click OK
And now allow the regular chat!
Ta-da!
Otherwise you only get pre-chat in ROBLOX...
...Hope that helped!