Your signature is whatever you say it is. Print it and it’s still legal. (As long as you always print it.) You still have to print it twice for recieving packages . The courier hates having blank spaces on their forms.
You could use a smiley face for your signature if you wanted, but this will cause you lots of trouble.
-Rue.
My wife prints her signature (she never learned cursive writing – they weren’t teaching it in the schools). Hasn’t had too much trouble, though once she had a tax form returned as being unsigned. She pointed out that it was her legal signature and the accepted it.