Pieces of Your Heart

Rather than try to write from a generic guy's point of view, try writing from a specific guy's point of view. Each guy is different, just as each girl is different, and just as some girls are more masculine than feminine, so too are some guys more feminine than masculine. Gender isn't a something that's set in stone, and barring stereotypes, there's really now way to say for sure that something or someone is or isn't masculine/feminine.

Instead, if you're going to write from a guy's point of view, write from the point of view of a specific person. He happens to be a guy. Okay. How does he view the world? Is he the poetic type to begin with? He's probably not going to conform to stereotypical male behavior if he is, and he'll come across as being more "feminine" as a matter of course. What are his particular interests and quirks? Try and incorporate those into the narration and imagery.

Basically, create a living, breathing character whose distinct voice you can capture in a poem. If you manage to do so, then it won't matter what gender the character is "supposed" to be; it will show through naturally.

That said, if I hadn't read the author's note at the top saying that this poem was supposed to be written from a guy's point of view, I wouldn't have known until the sixth stanza. Honestly, it could go either way, not because of anything in particular you did, but more of what you didn't do. The entire poem is rather generic in language, and since it's so generic, either gender could have said all the above.

So, first things first, get a character with a distinct voice you can convey. Secondly, convey that unique voice by not relying on generic language.