I think in such cases you should probably give your own suggestions right after you tell someone to change their approach, so to speak. Self-confident people tend to be impulsive, that is why you must provide some proofs to assure them in your point. Something like "if you do that - you'll have that, you don't want to look that way" Tell him, you see the website not only as a website developer, but also as a consumer.

I think in such cases you should probably give your own suggestions right after you tell someone to change their approach, so to speak. Self-confident people tend to be impulsive, that is why you must provide some proofs to assure them in your point. Something like "if you do that - you'll have that, you don't want to look that way, right?" Tell him you see the website not only as a website developer, but also as a consumer.