How to tell if the guy likes you or he's courting you?

This line suddenly pop out in my mind... how can u say that a guy is already courting you? or if he does like you... like the way you do...

It's really hard to tell, well.. as for me who only had ONE boyfriend for 23 years... its getting really into my nerves on identifying if a guy likes me of he is just being nice to me like everyone else.

Guys are so typical on their expressions.. they smile, laugh and join you in times of things that the world is like has stood still for you... but how can you tell.. well, I can't and I really want to find out how to know about it...

and I'm about to find out as in this rainy season!!! for crying out loud...