How do I console a man who is crying?

Hug him, it's the only thing you can do!

Hand him a pair, just a thought.

Slap him in the face and tell him to be a man.

That is so very hard for anyone to say as each individual has to be consoled in a way that works for them for the reason they are crying.

If the guy broke his pencil, I would say "Get a grip!"

If his wife died, I would give him a firm hug and let him know I would be there if he needed.

I agree with edgar R

and make sure you make him feel embarassed.

I know its ok for a man to cry. but if he crys too often you need to punch on his balls to remind him who he is

Let him know you are concern him and ask him why he is crying and let him know that you want to know what happen with him and say baby dont cry let me why you are crying?

Depends largely upon the situation and that man's perception of that situation.
If the situation deserves a genuine expression, manifestation of grief, sharing a sorrow, then consoling would just reduce the duration of incessant crying. Bring that person to a deeper sense of acceptance of the inevitability of the situation, and it would console.

bare your chest to him. Infact I'm feeling a little emotional right now.

put your arm around him. Don't pressure him to do anything, to speak or anything. Just let him know you're there. When he stops, then ask what's the matter.

Give him a cuddle. I know thats what i would want

say it'll be ok honey and pat his head. say calm down. Like you talk to a baby.