Girls, How do I challenge a girl to a kickboxing match without seeming scary?

I’m 6’4 and close to 200 pounds and I’ve recently took up kickboxing. In my experience, men love to hit hard and don’t focus too much on technique. Women on the other hand are a much tougher match and I often have to focus much harder on blocking and outmatching them tactfully. How do I challenge a woman without coming off as threatening?
Girls, How do I challenge a girl to a kickboxing match without seeming scary?
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