I'm an F-1 student in the U.S. On Dec 28th last year, I left the U.S. temporarily for Japan, where I am a national.
Something was strange with the airport through which I flew out of the U.S. For one thing, there was no officials there to stamp my passport. Apparently this made me look suspicious to a custom official at the Japanese airport, who checked my baggage, something that does not happen always.
I am returning back to the U.S. very soon and I am expecting a similar hiccup at the U.S. airport (by the way, I am returning to the same airport). How can I minimize the possible damage? Is there something I should prepare? Is there something that I should avoid?
(For example, I carry my pillow around when I travel, and I do not want it to be ripped by officials to check the contents. I also carry similar childish items usually and I do not want to be embarrassed.)