Translation:If you move your feet, you lose your seat.
I think because this implies that people lose their chairs in Sevilla whereas this is about leaving behind your spot and losing it that way. It's not loses as in 'walk into an alley, and lose your wallet.' But the more in a musical chairs sense. You moved your butt, so the chair isn't yours anymore.
Although your answer is close enough that it should probably be accepted.
Learning idioms via this Duolingo method is nuts. The translations are totally off. I am just trying to get through the exercises remembering the kooky translations. You might have the exact same words (i.e. with whom you walk rather than "who you walk with" and it is wrong. There are obviously limitations to whatever way you learn a language, but HERE IS ONE with Duolingo. The only way for me to actually understand the MEANINGS of these expressions and proverbs is to google them. Very annoying.
Anyone know the history of this phrase, where it came from? This page was one of the Google results when I was searching for the historical antecedents of the phrase.
The correct English version would be "Finders keepers, losers weepers." (The person who found what you left behind will keep it, and you're going to "weep" - cry - because you lost it.) It means, if you leave something behind and someone else takes it, too bad, you're out of luck, it's your fault because you left it behind.
So the rhyme means the translation is pretty perfect this time.
Another funny thing not directly related to the translation; whenever someone said, "See ya," to Lucilla as a fairwell, she'd respond, "Mesa?" and wave with a psuedo confused look on her face.
Which was a play on words, with silla meaning chair and mesa meaning table. If you want to use this on a Spanish speaking friend, they usually get a kick out of it.
I'm a native (US) English speaker and have never heard "If you move your feet, you lose your seat." and, quite frankly, don't know what it means in English. I assume that the reference may be political for people leaving the capital, Madrid, and finding that they are replaced by other politicians.