Unfortunately, often it's my big dick. I hate size queens, but they always seem to assume that a compliment about my dick is welcome. On the contrary, it kills everything.
I'd like to be complimented about ME, if merited. Telling me I have a big piece of flesh between my legs is more of an insult. Tell me you like my wit, my conversation, my company, ANYTHING but my dick.
My big dick is the bonus, never the reason. If you confuse them, you haven't got a chance.
Depends on the guy. Some guys compliment on my chest, others compliment on my bootyliscious ass. Me thinks that depending on your preference, you're going to notice certain things before others. *shifts eyes*