To make fun of or provoke someone in a playful way.

चिढ़ाना

English Usage: She enjoys teasing her younger brother about his silly habits.

Hindi Usage: उसे अपने छोटे भाई के बेवकूफ आदतों की चिढ़ाना पसंद है।

The act of making fun of someone in a playful or mocking way.

मजाक करना

English Usage: His teasing was all in good fun, and nobody took it seriously.

Hindi Usage: उसका मजाक करना बस मज़ाक था, और किसी ने इसे गंभीरता से नहीं लिया।