
One evening, I watched our guide, a Kelabit (from the Bario region), talking to the host of our lodge, a Berawan (from an area closer to Miri). As neither could speak the home language of the other, they conversed in Standard Malay, which seems to be the inter-ethnic lingua franca in most of Malaysia. And I was surprised to find that I could understand much of what they were saying.
I don't think I have ever heard Standard Malay being used conversationally in Brunei, where the inter-ethnic lingua franca is either Brunei Malay or English; and when people converse in Brunei Malay, I have no clue what they are talking about.
It was wonderful to encounter people actually using the language I have spent so much time and effort trying to learn.