other people's pain is easy to dismiss; suffering seems trivial when it isn't yours
Você riu do atraso dele, mas pimenta nos olhos dos outros é refresco.
You laughed at his delay, but other people's problems are always easy to dismiss.
The proverb creates irony by calling pepper “refreshing” only when it burns somebody else's eyes. It criticizes the ease with which people minimize pain or trouble that they do not personally feel.
Falando's Idiom Trainer teaches you to recognize idiom meanings and create sentences using them, so you can speak like a Brazilian.