8. Looks happier when she is around that man
A woman who is in love with a man would laugh a lot around him or at least smile a lot.
It is because she enjoys the time and enjoys his company. The happiness on her face is yet another one of the best indications for a man to know whether the woman is deeply in love with him or not.
And notice her smile and how it reaches up to her eyes, a true smile that is. And that kind of thing only happens when she is around those that she loves, those that matter to her. So if she seems happy this in your company and you have such an effect on her, do not let it go unnoticed and know that it is only because she loves you that much to make her feel genuinely happy, positive and hopeful about the present.
Even if she is sad or is having a bad day but becomes happy and cheery around you, she only shows that change due to the love blossoming in her for you. Happiness is a choice, as they say. So when a woman chooses to be happy around you, it is not just for nothing.
She truly believes in you, in the good in you, in the difference you bring in her life and her feelings for you. Such happiness blooms in her every once in a while, so pay heed when it does.