i think that most 'intelligent' people (and yes, the term is endlessly debatable) have little use for calling particular attention to their own intelligence. few times does it offer any real benefit, and the pitfalls are many.
the point of having some kind of talent or intelligence is to EXERCISE it effectively in useful areas.
as in creative writing- "show, don't tell."
become effective in whatever you're striving in and let the results sort themselves out.
when it comes to dealing with other people, undertake the power of translation. observe how people think, what they care about, the ideas that run through their heads, the language that springs to their hearts and lips. and then build a bridge. and then build a bridge...