I ran into someone I hadn't seen for ages in the supermarket this morning, and she'd lost a fair bit of weight (a few stones, I'd say). She looked healthy and happy, and I was pretty sure the weight loss was on purpose.
But I couldn't bring myself to comment, given how much it annoyed me when people commented on my (much smaller, and somewhat accidental) weight loss.
Is there a polite way to comment? I worried she wanted me to say something, but I didn't know what to say ...