Well first of all where do youy buy from ? And is it tricky to do ? But more impoirtantly, is is silly for a 30 year old to wear ? would you look like a bit of a pratt ? Is it only for 21 year old beautiful Americans, in pop videos ?
Bead shops are a good place to look for stick on jewels. I used to wear a row of diamante above each eyebrow, although I was 16 and it was the 80s.
I have used stuff like this on shoots, although not sure where you would get stud like ones. They may be bespoke. On the face I'd say you could get away with wearing them if you're going out clubbing but definitely not on the lips. There are some things that really only work in photos. Imagine trying to drink/talk/eat with those on. You'd actually have to walk around with your mouth slightly open constantly which probably isn't as cool a look as you were hoping to achieve! .
Laughing at, 'in the supermarket'. Was thinking more like Hen party. like, once a year. But as you have also said, can't see me managing to eat chips on the way home, with lip studs like those. But I still REALLY like them.