Signs of affection

Now we are looking on the crossword clue: Signs of affection.
it’s A 18 letters crossword puzzle definition. See the possibilities below.

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Possible Answers: XOXO.

Random information on the term “XOXO”:

XHTML (Extensible HyperText Markup Language) is a family of XML markup languages that mirror or extend versions of the widely used Hypertext Markup Language (HTML), the language in which web pages are written.
Taken from Wikipedia