how do i enable the reciver to sign my document. I can sign but what about the client?

You would need to add the person who is going to sign as a Recipient with the Recipient Type of "Needs to Sign", then add a Tag/field specific to that Recipient onto the document, wherever they are required to add their signature. So you start with New Envelope, add two Recipients, one for you and one for the client, both set as "Needs to Sign", then when you are on the screen in which you add fields, in the upper left you should see a Recipient dropdown, color coded for each different Recipient. First, you add tags or fields for Recipient 1 (you) then change the Recipient dropdown to the second Recipient (usually a powder blue color), then add tags/fields specific to that Recipient. Because tags/fields are color coded they are only applicable to that Recipient. Send.