This page includes four language pickers, each of which is structured as an ordered list, with each list item containing a radio button and a label. This is just a demo. Selecting a language doesn't actually do anything.
For test results, see my blog post on Accessible Language Pickers.
But first, before we get to the examples I thought I would share that i do indeed speak English, ich spreche Deutsch, yo hablo español, Je parle français, 私は日本語を話します, and म नेपाली बोल्न plus a little bit of ᐃᓄᒃᑎᑐᑦ.