what to expect from an orthodox service?

hello! i’m a reform jew who recently moved from london to a city with a lot less synagogues. synagogue, i should say, because there is one total haha. i’m going to start attending from next shabbat, but ive heard that they do orthodox services. i haven’t been to one since i was very very young and don’t remember it at all really.

for those who have attended both reform and orthodox services, what are the biggest differences? thank you all, have a nice day!