While you are away experiencing a different culture, your friends and family will also be experiencing changes. They may not seem interested in where you have been, or what you have learned. You may find it difficult to put into words all the things you want to share with them. Many returning students become quite negative about American society - it's too materialistic, ignorant of the rest of the world, etc. Please realize that these feelings are all part of the cultural growing process that began when you first decided to study abroad.
Some students experience very mild reverse culture shock, others more severe.
Acquisition of new skills You will have accomplished a great deal during your studies overseas. You may speak a new language, have new lingo, or be able to get around even the most confusing of subway systems. These are things which were part of your life overseas. While overseas, you probably will have enjoyed a certain status as informal ambassador. Returning home and being 'normal again can prove difficult.