How does advertising influence user behavior?

Some areas of improvement

We could have started by asking clarifying questions.

What is meant by advertising? Is it email advertising/ social media ads/ print ads/ out of home ads or a combination or all of the above?

What is meant by human behaviour? Is it getting someone to start their first interaction with a product? Is it meant to bring users back to the sales funnel? Does it mean a final sale or conversion?

Based on the interviewer's response, the answer can take different routes.

Let's assume the interviewer wants to know how does Social media ads influence conversion behavior.

We can then talk about how social media ads are becoming increasingly targeted and strike the user when he is thinking about buying a product- thus they are very contextual and relevant.

They can nudge the user and make him buy when he was maybe in two minds.

However, it can even be a double edged sword.

Some users might take this as an intrusion in their privacy and thus leave the sales funnel. Thus it is important to be subtle as well.

And most of all, the product has to deliver substantial value for advertising to give long term benefits.

Hope this helps.