After I've hugged and been kissed on the cheek, I always come away with the feeling that the other person may have thought I'd enjoyed it too much, if you see what I mean. I just get this chill down my spine worrying that I've been too intimate, hugged for a nanosecond too long, made too much contact with the kiss. The worst time was when one of my female friends came to visit, went in for the hug/kiss greeting, and I judged my position wrongly and my hand landed not on her waist but bang on her breast. I was mortified.
On a sort of related subject, I feel extremely awkward when I'm expected to have my young nieces and nephews kiss me on the cheek. I sort of dodge out of the way and just ruffle their hair, just like my uncles used to do to me in England, no kissing there!
Cheek kissing, very embarrassing. Luckily I only have one or two friends who do this, and they're way across the Atlantic, so I don't see them much!