Subtle Hints

What is a subtle tip? 3

The words (tips) in the sentences below, can someone with good English help me understand them?

The best way to advertise them is to make subtle hints about them, be a little indifferent, and ask them questions.

And what do we mean by Wu ???

I know, but my vocabulary is very limited ... please help me ...

update

I might have the word synonym: subtle trick plzzzzzzzzzz

Wu is an old word, but it is still used today. Dating someone means they're romantically connected to you. In search of love, says Webster.

A subtle gesture may be to wink at him or drop your finger while he is there, so you both go at the same time. )

The best example of a subtle tip is that when someone's breath smells, you put peppermint or gum on the table! :)

Subtle meaning

Wow means some people like you or do it for you.

So the sentence says to make a girl like you, use subtle gestures and stay indifferent. At the exact same time.

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