If you had to marry someone without meeting them first - based on 3 bits of information, what information would you ask for? (i.e. full body picture, paycheque, genetic history, nudes, age, height etc.)
Full body picture
A short (or long) video of them talking, saying whatever they feel like saying
There is no three. Or, if there is, it's if they have kids at home/what ages, etc.