I sell hot sauce BBQ sauce, and rubs and seasonings at about 10 farmers markets and I want customers that want to get on my monthly recipes, products, information, monthly newsletter, etc, to be able to quickly add themselves to my mailchimp database. I would like to show a QR code at my booth that customers/vistors can scan with their smart phone that will go off to my WordPress page with a formidable form on it and allow them to fill out name and email — that part is easy and already complete. Now what I want you to do is give them a button — like an auto fill — that will extract their name and email from their contact information on their phone — not from the registration information in formidabl—because most have not registered— but from their contact information. Anyway to do this? If you have auto fill set up in safari on iPhone it should allow for an auto fill, but I was hoping to just add a button or some code to autofill and make it real easy. 
Thanks!