I am on a train. There is a man watching a golf tips video without headphones. What is reasonable as a response?

[SimultaneousEquation]

I’m being very British and occasionally giving him surprised looks. And huffing.

For future reference in case anyone needs to shout at some arsehole on the train watching golf videos, it's "fore" not "four" (although of course sounds identical)

Bluetrews25 bugger! I was too slow there! I did consider asking him if his name was Brian and is Hull nice at this time of year 😉