If the difference between guys and men is still unclear, here are a few examples that apply to dating:
A guy uses women to build his self-esteem. A man already has it.
A guy likes to "hang out" with a woman he's interested in. A man asks her out.
A guy doesn't make a move until he's sure there's no risk. A man is bold and clear with his intentions.
A guy plays games with a woman. A man has no time for games because they keep him from getting to know the woman.
A guy will become bitter and angry with a woman when she denies him. A man accepts that dating involves risk.
A guy fears and worships women. A man respects and adores them but fears and worships only God.
Guys are cool and indifferent. Men are hot and passionate.