OCD when it comes to a clean nose/ears - the former probably has some form of maintenance several times per day, ears are once/day immediately after shower. I try not to do any house cleaning around others, but if I can feel something's in there that needs to be out I can't resist for long. The family has no chance to escape it during sports watching and car driving - just hope they're not paying attention. Thankfully my office setup has me looking at the door, so even if I'm about to be caught in the act I can audible to a face scratch.
Loogies come in waves, a few days per year there's probably a dozen of them, but it's related to some bug I'm trying to fight off. Non issue other days though.
Farts and burps are never overt, but it's rare I'll do anything to minimize the carnage either. Burps are tied directly to alcohol (so, couple times per month - more in summer) and coke (less than 5 per year). Farts? Well, it's best to just not walk into my office before the morning ####. If there's a round 2 then the time prior to that isn't safe either. I'm usually okay the rest of the day until after I fall asleep. Allegedly my kids 2 doors down the hall hear those things roaring with great frequency in the middle of the night. Allegedly. Kids lie though. But in unrelated news, I also have a tendency to wake up with bruises on my tricep.