While USPS does not require a signature for our packages, it is ultimately up to the discretion of the driver as to whether they should leave the package. If the first attempt is unsuccessful, a second attempt will be made, usually on the following business day. Please note - we cannot stress enough - the importance of letting your recipient know that a “surprise” may be arriving. Sometimes packages are left at a side door…or in a mail room of an office…or on a loading dock of a hospital. We want to be sure your recipient receives their thoughtful gift in a timely manner.