What was the last skill you learned and how?

It can be a small skill.

The last thing I learned to do was whistle. Never could whistle my whole life, and tutorials and friends never could help me.

So, for the last month or two, I just sort of made the blow shape then spam-tried different "tongue configurations" so to speak -- whenever I had free time. Monkey-at-a-typewriter type shit. It was more an absentminded thing than a practice investment.

Probably looked dumb as hell making blow noises. Felt dumb too ("what? you can't whistle? just watch"), but I kept at it like a really really low-investment... dare I attract self-help gurus... habit.

Eventually I made a pitch, then I could shift the pitch up a little, then five pitches, then Liebestraum, then the range of a tenth or so. Skadoosh. Still doing it now lol.

(Make of this what you will: If I went the musician route my brain told me to, then I would've gotten bored after 1 minute of major scales. When I was stuck at only having five pitches, I had way more longevity whistle-blowing cartoonish Tom-and-Jerry-running-around chromaticisms than failing the "fa" in "do re mi fa".)

So, Lemmings: What was the last skill you learned? And further, what was the context/way in which you learned it?