Smoke the top 1/4 - 1/3 of it,if it's coming into flower. Males can have THC levels as high,and sometimes higher,as the upper shoots on the female plant at the same period when the males begin stretching just before flowering. The bottom 2/3's you could use for edibles.
You wouldn't believe the number of people I've unknowingly got sh!tfaced on the upper leaves and flowers of male plants over the years. It's always fun to tell 'em what it was when they rave about "How good that trim is!" LOL.