Nouns and adjectives

Hi, I recently joined to begin to learn Spanish as I have a very good Puerto Rican friend that I would like to surprise with how I'm learning, various phrases and sentences, etc.  He has helped me with some things and his Spanish to me is in the informal sense.

I would like to write a greeting:  "Hi, handsome Puerto Rican man!"

I'm trying to understand when an adjective is supposed to go before OR after a noun.  I've only seen it used after a noun but read that it can be one or the other dependant on some reason I don't know.

Would I say, "Hola guapo Boricua hombre!" or something like "Hola, Boricua guapo hombre!"  And would 'hombre' be the right word to use for 'man' for very close friends?  Or maybe "Hola Boricua Papi guapo!"???

I'm also trying to come up with some original 'pet' names and not having much luck..  I currently utilize Papi, Papi chulo, Papi dulce, Guapo.  Things like 'mi amor' or "Rey" "novio" are too strong at this point and neither is papicito or mijo particularly desirable.  Any original thoughts in this area would really be appreciated.  Would 'Papi fuerte' sound 'off'?

Muchas Gracias!

As a general rule, adjectives are used after the nouns, when they go before the noun it means that you want to emphasize the adjective. Then you could say: Hola, hombre guapo de Boricua. It doens't sound very good if you say guapo hombre, but it's possible.
Pet names depend on the point you're in the relationship. If you are in the beginning it would be wise to use just the name, afterwards it's all up to you.

Latin

As a general rule, adjectives are used after the nouns, when they go before the noun it means that you want to emphasize the adjective. Then you could say: Hola, hombre guapo de Boricua. It doens't sound very good if you say guapo hombre, but it's possible.

Thank you very much for explaining these things to me.  In the sentence "Hola, hombre guapo de Boricua", it seems to me that the adjective 'guapo' comes after the noun 'hombre', yes?  Could you possibly please give me a sentence to show an appropriate example of when one would want to put their adjective before the noun?  I'm not sure when or what kind of an adjective one would want to emphasize.

Latin

Pet names depend on the point you're in the relationship. If you are in the beginning it would be wise to use just the name, afterwards it's all up to you.

I'm looking for some unique pet names for a man in a relationship that is quite affectionate, but not quite yet at the 'undeniably in love' stage.  Unfortunately, I'm having a hard time thinking of anything good!   Again, thanks very much for your help!