Which symbol means hug?
Which symbol means kiss?
Perhaps you have always known this, but I realized that I do not! So...the next natural step was to search google for information. Some sources said they were interchangeable, but I liked urban dictionary's explanation the best:
Hugs and kisses
If you look at each letter like it was representing two people from a bird's eye view, the "O" represents the arms of those persons hugging each other while the "X" is evocative of two people kissing each other.
How sweet! Hope you have had a great Wednesday!