I'm new at my bank and enjoy my work but an established, and well-liked, colleague is making things uncomfortable with inappropriate comments. How do I raise this?

This is a delicate one. Clearly, no one should have to tolerate inappropriate comments in the workplace - after all, you are there to do a job, not to be put off doing it by the behaviour of others. But equally, get this wrong, and you risk excluding yourself from the group. That's important not just for your career but, as you probably spend most of your waking hours with these people, it's also pretty fundamental for your daily life.