Hi. I wonder if there is any specific word or idiom for a situation when someone inserts his finger in his nose.

What is the natural way of saying that?

Can we say I hate people who insert their finger in their nose all the time ?

Any related verbs, adjectives, idioms are really appreciated.

Thanks for your time and help in advance

That's called "picking your nose". I hate it when people pick their noses all the time.
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Oh. Thank you.

I remembered it.

Thanks Csnyder.
Thanks Iman.
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We have PICKING and POKING one's nose...check for the differences...