When you ask a question, use the camera button on the bottom left corner of question input box to add a picture of your pet to your question. (blog.pawbly.com)
When you add a signature, a large input box appears at the bottom of your screen to allow you to sign using your finger or a stylus. (lawyerist.com)
Then, type your question into the question input box. (blog.pawbly.com)