Feeling a bit silly
Ever had the experience when you pick up the phone and speak in a nationally understood language (usually Malay in Malaysia) and by hearing the other person's reply in the same language, you realize that both of you are not native speakers of said language and are probably better off conversing in another tongue?And then you both automatically switch languages, instinctively settling on one that the both of you are comfortable with and you can hear the sheepishness in each other's voices emanating clearly through the telephone line.
And you smile a sheepish smile to yourself and can't help feeling a little bit silly. I guess this is just part and parcel of life in a mutli-cultural, multi-lingual country!