They should look pretty normal. Your pupils might get bigger.. but it's nothing that would say you were on meth.
like lukas said, if youre tweaking hard youll just be like and everyone will know whats up. just tell them you were just prescribed adderal or something and just dosed a couple hours ago.
whenever I'm spun and i look in the mirror, i feel like i look like an elf. there's just something about that meth face....iono. but the eyes tell all...i can spot a tweaker a mile away just by their eyes.