noise cancelling headphones help a lot - I was wearing like earplugs at the time which surprisingly were not as good. It was on a tram with a bunch of drunk people yelling, so I honestly think I just need to avoid public transport when I think there's gonna be people like that out

I have some Beats noise cancelling earplugs that really help cut down on noise, but they don't block talking too much, especially not when it is shouting (which is both good and bad depending on the situation of course.

Yeah that is just a good idea in general. Drunk people can be quite unpredictable.