で to mean "and"


There are various ways to say and in japanese but what I am interested in is で
to mean "and". Can someone explain the usage of で. Example sentence:

> 貴方の背が高い **で** 顔もかっこい **で** 憧れちゃう － You are tall **and** handsome **and** i
> end up yearning to be you
>
> 子猫ちょっとかわいそう **で** 寂しそう － The kitten looks pitiful **and** lonely




Do you know how you can use the te-form of verbs to mean 'and'? For example,

> 食堂に行って、昼ご飯を食べて、昼寝をする。
>
> I will go to cafeteria, eat lunch, and take a nap.

で is just the te-form of です.

