Provided there is not an audible boom boom boom.. Music and videos are fine as long as we can tell you are trying to be considerate (but airpods and headphones are preferred)
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And don't give out your credit card details for the rest of the carriage to hear - it has happened on a train I was on. So stupid!And be mindful of your telephone conversations... I don't object to people having using their phones, but some people are very loud! And moderate your language - your mate on the end of the phone might appreciate your effing and jeffing, but the rest of the carriage won't.