I find it quite irritating when someone hops on the bus and talks on the phone very loudly— like, I don’t really want to hear your business. If the conversation is quiet, it’s not bad. I really don't mind people speaking on the phone in public. It's just when they talk really, really loud!
On buses and trams I regularly get people talking on the phone sooo loudly, I can't even hear myself think. I don't know whether it's a hearing issue or a connection issue.
The other day, I was coming back home, when a girl started to talk on the phone super loud that every single person in the bus could hear what she was saying. Guys, I had headphones as I was listening to some music, but they were not enough. It was a torture. I've improved my ability to concentrate, but I couldn't win over this noise. She was having a loud, animated conversation on her phone. It was impossible not to tune her out. I learned that her sister-in-law had gippy tummy, her best friend's husband was cheating on his wife, and that the guy (she was seeing) wanted to be more than friends with benefits.