My biggest turn on with guys is a good smile. It says a lot about them if you look deep enough into it. My weakness on a guys body is their back. I loooove hot muscular backs haha and the eyes are an obvious turn on. And when you can see that the person has self respect and will respect others, that's another plus. I love men. End of story
At age 50 and married with 5 sons, my turn ons include a well cooked steak dinner and a few pints of Guinness.The rest is academic.