Is there an obligation to sit near the Chanukah candles for half an hour and contemplate them?

• If you light candles in the street, according to the law, you must sit next to them while they are lit, for damage reasons, to prevent a fire.
• In a place where there is no risk of fire and harm to the public, such as lighting the candles at home, there is no obligation to observe the candles during the mandatory lighting time. However, it is a beautiful and good custom to contemplate them, to remember the miracle that G-d did for us in the days of the Hasmoneans, and to talk about the holiness of the day and its laws, see the sources.

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