Yes, guys can exercise kegals as well.  For us, we exercise the muscles that also allow us to stop in the middle of taking a whiz.  That's not the entire truth of it, but just as I can't imagine exactly what a lady must do in exercising her kegals, a woman can't exactly know what men have to do either.

Ha... suprizingly enough, there are very similar  LOL... simply preventing urination or the squeezing practices are just about the same.  The only thing we got on the ladies is the "weight lifting".  LOL... and yes, it is something them thar ladies seem to find...umm... amusing.  A guy can contract that muscle that prevents unination and this also lifts and temperarally enlarges the penis...you know, it hops.  Well, we can practice with weights likes a wash cloth.  Need more weight?  Wet it.  It's more of a "lift and hold" kinda thing.