Purely physical?
I like soft, kissable looking lips, maybe a little on the big side. I like to see them smile, too.
I like eyes that reflect a loving, kind heart.
A body that is neither too buff nor too soft is good... I like someone to be balanced in both body and mind.
General health/fitness combined with a good personity that shines through the features is what I am potentially attracted to in a man, or woman for that matter.