I don't care.
When you come to America, be prepared for it :)
I really love it...in some ways
ที่มีเมกาเป็นไงอะครับ พี่เล่าให้ฟังได้มั่ยอะ?
It's the way to show friendship, everybody does it. So, when someone hug you, you should hug him back. Don't become "frozen" when someone hug you, otherwise, he won't do it again.
In the very first month I came here (I'm in Houston, Texas), I wasn't familiar with such that thing. But it's nearly 4 months now, I get used to it :)