They don't require interaction. Think about billboards, TV/video ads, sponsorship ads, etc. It's enough for you to just see an ad, to not forget a brand or product exists.
At some point, you might think about a product subconsciously due to any reason, and since you saw the ads, you'll think of a specific company's product and likely rank them higher among "unknown" brands by default. That will bubble up at some point and you'll have a desire for it which you either accept or reject. Most will accept, causing more to accept to be in the group. It's human nature.
At some point, you might think about a product subconsciously due to any reason, and since you saw the ads, you'll think of a specific company's product and likely rank them higher among "unknown" brands by default. That will bubble up at some point and you'll have a desire for it which you either accept or reject. Most will accept, causing more to accept to be in the group. It's human nature.
Any interaction is a bonus.