Being able to compliment another man on his looks and not think of it as somehow a bad thing is a sign of being confident in your own sexuality to not be scared that you might "turn" yourself.
Real men can give and take any compliment and not think it makes them less of who they are.
I got banned from a bunch of Reddit subs for once telling someone they were wrong about the Yorkshire accent in the UK. They called me a liar about being British and then I got banned from like 30 places at once.