Emails are the death of all natural human warmth. It’s kind of just as awful to be a fun/funny emailer than to be a cold robot. You can’t get tooo precocious with the signature but signing off with “Cheers” adds a little naughty spice while still being utterly forgettable and benign. It’s kind of an adorable mental image for someone to be raising a glass every time they shoot off another email.
