Most students prepare for the big cultural differences before moving abroad. It's usually the small, everyday things that catch people off guard instead.
Communication styles
How directly people give feedback, how meetings are run, how disagreement is expressed - these vary a lot by country and can feel confusing or even rude in either direction until you recognize it as a style difference, not a personal one.
Food and daily routines
Meal times, portion sizes, and what's easy to find at a local grocery store often take longer to adjust to than students expect. Keeping a few familiar ingredients or recipes on hand can help on harder days.
Making friends works differently everywhere
In some places, friendships form quickly and casually; in others, they take longer to build but tend to be deeper once established. Neither is wrong - it just helps to adjust your expectations for how quickly a new social circle will form.
What tends to help
Students who talk openly about these adjustments - with other international students, with local classmates, or with a counselor - usually process them faster than students who assume they're the only one struggling. Almost everyone goes through some version of this.