(adsbygoogle = window.adsbygoogle || []).push({}); How do i show myself offline but really online on my friends list on psn?

Do you mean appear offline on PSN to your friends while your really online?

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I don't think there is a feature like that and I don't know any hacks that enables that feature.
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What I would do is make another PSN account and play on there.

you can have the setting as Away but thats bout it

Put that person on your ignore list or delete them is the only way.

No way you can do it. I've tried before.