Recently it has become common to see ladies walking around the Haredi neighborhoods, specifically the shopping streets of Geula, sipping from an iced coffee in a paper cup. It certainly looks inappropriate to me. However someone pointed out to me that many Rabbonim also judged talking on a cell phone while walking down the street as inappropriate (Lav Derech Erets) but in Israel it has become common practice.
I remember a Gemara that says that anyone who eats in the street is like a dog .. is this true of drinking also ? Or is it like walking and talking on the cellphone maybe lacking in Tsniut but still within the bounds of Derech Eretz ?