So I'm having a very, very small wedding with 25 immediate family members and best friends and their spouses and kids. I don't have bridesmaid and groomsmen-- just my children as flower girls and ring bearer. I asked my best friend since forever to sign as my witness but my aunt thinks she should sign instead. I always intended on my best friend signing. Is it a big deal who signs? Does it make a difference if it's a family member or not who signs for me?