What they see, in order
Prove the address, if you asked for it
Agree to sign electronically
Read and fill
Adopt a signature
Finish
The document

The signing portal. The document sits in the middle, the counter and Finish in the header, the tools down the right, and progress along the bottom.

Search marks each hit on the page and lists it with its page number and the sentence around it.
Adopting a signature

Adopt Your Signature. Draw with a finger or a mouse, or type a name and pick a style.

One adoption, applied to a signature, initials, a stamp and a second signature, each carrying the signer's name and recipient id.
Finishing
Finish commits the signature. It is a separate act from filling the last field because ESIGN requires the signer to indicate intent, and filling a box does not do that on its own. The arrow beside Finish opens Other actions: Finish later (everything is already saved, so the same link picks up where they left off), Assign to someone else, which sends a new link to the person they name and closes theirs, Decline to sign, which stops the envelope rather than skipping them, and Print & sign.
The confirmation screen, with the executed copy previewed beside it and the other parties' progress below.
Branding the portal
Two places control how the signing link looks to a counterparty.Configuration → E-signature → Portal Branding
Configuration → E-signature → Portal Branding
Your organization's branding
Your organization's branding
Signing Emails
Signing Emails
What to tell a signer who is stuck
I cannot click anything
I cannot click anything
It says I cannot sign yet
It says I cannot sign yet
Finish is grayed out
Finish is grayed out
It is asking for a code
It is asking for a code
The document has not appeared
The document has not appeared