The Magpies squad features 10 Frenchmen plus two other players with French-speaking backgrounds and the ex-Tottenham star is concerned that the likes of Hatem Ben Arfa, Yohan Cabaye, Loic Remy and Papiss Cisse could cause divisions if they do not make the effort to integrate.
"You can't just arrive in Newcastle and say: 'I'm just going to live my life, I don't want to understand the culture'," Ginola told the Daily Mirror.
"It could be bad if all the French players stick too much together; you don't speak English, you speak French together in the dressing room. I guess there will be some rules in the dressing room that the French should speak English. That could be a problem.
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"It can bring some issues in a dressing room and this is something you have to avoid.
"When you are from Saint-Tropez and you play four years in Paris and you arrive in the North East of England, you think that people speak English but, in fact, they speak Geordie," Ginola recounted of his own move to St James's Park. "So for me it was like a foreign language - but another foreign language.
"So I said to myself that would be difficult but, having said that, I did everything I could to be accepted; learning the language, doing my best every day in training.
"The best reward for me was that people questioned how I would do in England and in the North East but I arrived on July 14, started the season and I was voted player of the month for August. It means I settled down pretty quickly and learned about things pretty quickly and this is what they should do."