In my case it depends on the nudge I'm currently set up.
If that's about using the phone less, like during focus time I pick it up habitually to procrastinate the screen can say "Just put it down and check it at the scheduled time". When I see the text I'm kind of dragged out of the habit loop and just putting it down or press the lock button. So it's a kind of replacement of one habit with another one. See an app screen? Lock the phone.
If it is about a weekend or a vacation I put a text on the screen about being more relaxed and not having FOMO. Like 'If that's something important, you will know about it'. Here the mechanism is almost the same, I'm replacing the habit of checking stuff with something different like music or locking my phone back again.
If that's about using the phone less, like during focus time I pick it up habitually to procrastinate the screen can say "Just put it down and check it at the scheduled time". When I see the text I'm kind of dragged out of the habit loop and just putting it down or press the lock button. So it's a kind of replacement of one habit with another one. See an app screen? Lock the phone.
If it is about a weekend or a vacation I put a text on the screen about being more relaxed and not having FOMO. Like 'If that's something important, you will know about it'. Here the mechanism is almost the same, I'm replacing the habit of checking stuff with something different like music or locking my phone back again.