> Visited India for 2 weeks. I picked up "ok, ok" (as in generalized neutral to happy agreement during conversations) and that Indian head bobble that means "Yes, it's all fine" when I visited. The "ok, ok" stuck with me and the head bobble automatically kicks in whenever I'm in Indian store or restaurant. I try to not. It's hopeless.
Oh, and the "Madam" instead of "ma'am" thing. That stuck with me for awhile. I have managed to avoid calling any Indians "uncle" or "auntie", so I have that going for me which is nice.