For me love is a kind of strong connectedness to someone else, like thinking often about this person and a longing to help when something is wrong with the other one.
I also know the „Hollywood definition“ of racing pulse, strong heart hammering or weak knees when seeing each other. This feeling I would call „felt in love“ emotion.
Maybe I am a bit special in that point… who knows?
How to draw love?
I have several associations in my mind for emotion „love“. The comic way is …
- using hearts flying around the characters head
- hearts popping out the eyes or the chest
Other visible indicators can be…
- weak legs or knees
- red face
- wavy mouth line
- insecure body pose

Of course these are not all ways. Think about throwing kisses or embracing couples. But for the scope of this post it suffices.