My advice would be to *gently* remind him that you left him some and would he be kind enough to do the same.
Since the transaction was smooth like you said Raymond, I don't think it is a snub or anything like that.
My feedback history is nowhere near as large as some of the folks here, and I certainly agree w/ the fact that good feedback helps establish a precedent of behavior and character. I value it and use it as one tool to help me navigate the Exchange.
How I handle feedback is very simple (put into practice) but a lot to write so please bear w/ me:
First, I do not do anything until both sides are whole--receipt of money or product. If I am a seller, once the person gets his or her package I ask if everything is good. Once they say yes then I go ahead and leave feedback. Now there have been a few folks who left it for me first. In those cases, I thank them and proceed to leave them some. If I left it first, I send them a PM w/ read receipt saying nothing other than they were great and I left feedback. Then they have done the same.
I neither ask for feedback nor do I think I am entitled to it (not saying that you do or think you are Raymond; I am simply speaking about myself). I don't view it as something that "must happen" or set in stone etc. It does not determine whether or not we work together again. The individual's character and integrity does that. These are difficult qualities to ascertain from one transaction, but it can be done.
I *always* leave feedback for people after a transaction. I see it as a courteous and respectful way to bring the transaction to a close. Everybody with whom I have dealt has reciprocated. It does not matter if I am buyer or seller. Some people do not participate in the feedback system and I certainly respect that too. How an individual conducts him/herself during the transaction is much more important in the long term.
The second thing to remember is communication. I cannot stress this enough. Once the preliminary "I'll take it" is over, it is my responsibility and duty (as a seller) to be clear from the start. Thank them for their interest and for buying from you. Remember, you are being trusted w/ someone's hard earned money. Build and strengthen that trust. Tell your buyer when and how you ship. Provide tracking. A day before the package arrives PM or email/text to remind them. Once it arrives let them know and ask if everything exceeds their expectations. I like to be in constant contact until my buyer receives the product. This allows you to be thorough and show the person you are personally invested. It costs nothing to care. I treat everyone as if they have given me a million dollars. I don't do it b/c it's the "way it's done" or b/c I "have to." I do it because that's the kind of man I am. There is no other way for me.
As a buyer, the same applies. Be precise about your payment. Dates and times are important. Get tracking and share it with your seller. Let them know when it arrives. When you get your item, tell them and, if appropriate, leave feedback. Do what you say you are going to do. Then thank them and tell them you left feedback. Make sure to ask questions. Keep them engaged and informed.
That is usually sufficient to elicit reciprocal feedback which brings us to your dilemma, Raymond. I would suggest after your reminder, you ask if there was something preventing him from leaving feedback for you (assuming you do not receive any after the reminder) Perhaps something has come up. It could be completely un related to you or your shared transaction. Life has a habit of getting in our way when we least expect it to. Most importantly, listen to the response and be patient. And as I alluded to before, if the gentleman in question does not end up reciprocating, it's probably not personal. At least you will know that you have done everything you could. Accept it for what it is and move on.
Sorry for the long post, but there are many intricacies involved in a buyer-seller relationship that I wanted to discuss with you. Good luck.
