Are you talking about that weird thing British/English people do where they sign their texts with a string of random x's which is supposed to signify how interested they are in the other person/the conversation?
Because as an American I can tell you many of us have no clue what the -blam!- those x's mean. We don't text like that here in the states (or at least I'm not aware of many people here doing that). I only have some idea of what those mean because I had a "texts from last night" calendar that had quite a number of those conversations with x's so I looked up what the significance was.
English
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I was completely unaware that it was a British thing. O: The more ya know. I've always found it to be completely pointless and only really do it at the point of goodbye or realisation of love. O.o Oh btw. I Love you. ><><