Go for it. But whe nI am at my friends house she is usually reading what I am typing and correcting me as I go. Its annoying cause I make a lot of typos! But its funny at the same time. we both type 'senf' instad of 'send' quite often!
depends, if it is a longer post or involved qouting, pics, graphics or something complicated I preview, otherwise I just post- I proofread as I go, and unless there is a glaring error I jut leave it after posting