What is the process after studying in the United States and getting off the plane?

Just answer truthfully and say that you will visit relatives here, but only for a few days. Immigration officials are generally not too embarrassed. Just say: go and see my friends and stay for a few days. Follow the crowd when you get off the plane, and remember to walk quickly, because there are so many queues when you go through customs, it will take a long time to walk slowly. Queue up for non-American residents, then accept questions and fingerprints from immigration officials, get your luggage after passing, and go to the customs for baggage security check. I don't usually unpack. Frankly speaking. If you feel guilty, it is easy to open the package. Don't delay. If you find anything unqualified or unlabeled, you must take it for testing. This will take a long time ..... so remember to label it or don't bring some unknown paste. After checking your luggage, you can go out to find your relatives.