I tell my kids after the beshow: “The decision to go ahead with this shidduch is OUR burden (based on our info), not yours. You don’t have to decide if this is the right one for you. You just have to decide if this is NOT the right one. Is there anything you find negative or off-putting about him?”
If not… Mazel Tov!
Really, the “yes” decision is too heavy a burden for a young person, let alone an infatuated one, to make on their own. The “no” decision is difficult enough.