Every single day at 3:45 PM Bob rings the doorbell at work. Every single day I answer the door and hand Bob a small amount of paperwork. Every single day there is about 10 seconds as Bob flips through the paperwork checking that everything is in order and occasionally (1/50) make some note or request at the end of the 10 seconds. Normally the polite thing to do would be to make some idle, friendly smalltalk until he confirms that its all good and I lock the door and go back inside. However, we have been making the same comments for almost a year and because of this I feel the etiquette may be different to the usual.
It is important to my colleagues and I that we have a polite, friendly and professional relationship with Bob. A few things have come up over the past year (e.g. I know Bob has one son and one daughter and he knows I play recreational table tennis) but in general 10 seconds is not long enough to properly get to know someone. Conversations can sometimes resume the next day but that is a moot point because I have no interest whatsoever in getting to know Bob.
As far as I can tell Bob seems equally happy not to engage in any conversation that would take extra time and just stick with being polite in the minimalist sense of the word. But it is not exactly clear to me what that means in our scenario. It is hard for me to believe that proper etiquette would be to repeat the same pleasantries 100 times (they are certainly not pleasant by this point) but saying nothing (which to be honest is what I feel like doing) seems like it could be misinterpreted as stand-offish and having good professional etiquette takes priority.
What is the standard/polite etiquette for 10 seconds of smalltalk in a workplace when you repeat the exact same process with the exact same person every single day?
Smalltalk lasts only as long as we each have to stand there, it does not make Bob go slower and the second he is done we stop talking. Here is an example:
Me: Hey, Bob: How's it going?, Me: Good thanks here is today's, Bob: Thank you, hot day right?, Me: you betcha, Bob: More than usual? Me: Yeah, everyone must be speeding things up as we get closer to the end of the year, Bob: Well, its all good, Me: Thanks, bye.