Convincly writing the male pov has to be one of the most difficult things about the craft to learn. Some women do it well, others run away screaming leaving hero's thoughts forgotten or avoided all together. I think as writers we must challenge ourselves with the scary stuff. Do I know what goes through a guy's mind during a football game, dinner, at work? Heck no, but I do have a husband who vocalizes his opinions on everything and a son who at fifteen is the imbodiment of male hormones, smart alic attitude, and coolness.
When in doubt, I ask them, but when you think about it, that's just another part of imagining. You are the creator of your book world. You decide what the hero looks like, feels and thinks, just like your heroine. His spoken words are only an extention of your character. In tough spots I ask myself, "If I was a guy, what would I do, say, etc." That seems to do the trick. I'm trying something a little different with Circle of Seven. My vamp tale is being written predominently from Kail's (the vampire) point of view. Will it suck? Maybe. Only one way to find out.
Have a great weekend!