How To Sign A Wedding Card How Do You Address/sign A Wedding Card?

How do you address/sign a wedding card? - how to sign a wedding card

I bought a gift online registration for an early-to-be-friends do not know. The site is a small card. What should I write and how do I sign up? I do not want my name just in case your thinking of someone else's place, but my full name is too formal. What is the etiquette for this?