How do you say Hablando por cel con la amiguita in English?

"Talking on the phone with my friend" is the most natural and direct translation of "Hablando por cel con la amiguita".

Here are some other options, depending on the context:

* Chatting on the phone with my girlfriend (if "amiguita" refers to a romantic partner)

* Talking on the phone with my little friend (if "amiguita" is used affectionately for a close friend)

* On the phone with my friend (a more general and neutral translation)