He's not actually saying that he's the most interesting man in the world. It's merely a Dos Equis reference.

I feel like he saw the girls and was like "hey come over here, can I get a selfie with you?".

Why do i feel like punching his face when i see him without his sunglasses?

The anger I don't think that's his problem

He's fugly.

That's a big claim since he only seems to own three outfits and they're all in the same colour.

never heard of her

He's not even the most interesting man in that photo

This man is still around...?

Isn't he gay?

He's literally the blandest pop singer ever.

probably

he sounds like sam smith

Well atm i find him the most interesting man for coming up with such a intesting saying about himself which is interesting to the global population because they have never heard of such an interesting combination of full name ( Asian and Spanish right? ) that with the help of Google they find the interesting fact that he's the Ayo Dynamite guy who thinks he's interesting for delivering one huge solo hit followed by mostly flops and shelvef material.
Im sure he's a cool and interesting guy and he's allowed to think that of himself.