Golf protocol as a guest

[Mescalito 19]

I wasn't sure where to post this, so I guess that means it belongs under "Idle Chit-Chat". I'm playing golf later in the week with the husband of one of the people in my company's Bangkok office. I've played in LOS before (local tournament) but not as part of a quasi-business setting. Are there any particular protocols I should know about, or things that I would be expected to do during or after the round? I've been playing for 40+ years so I generally know what I'm doing and like to think I'm quite attentive to course etiquette, but any guidance on additional issues in this particular setting will be appreciated.