ok, I need to know how to " brush up" (?) w.e. that is, can someone explain to me how to do that?

I have checked on google and it is not on there

so will someone plz help me?
We have no idea what you're talking about, can you maybe find an example on youtube or something?
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Quote by Master Foo
“A man who mistakes secrets for knowledge is like a man who, seeking light, hugs a candle so closely that he smothers it and burns his hand.”

You mean, like "brush up" your theory, or technique, that would mean work on them, try to get them better, improve your knowledge...
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