So is the new umm.

In high school and college, teachers and professors were constantly telling us students to avoid saying "umm" during speeches, discussions and in asking questions. It's that reaction we do naturally during uncomfortable times when our mouth is open and people are paying attention to us. I think the entire nation got good at steering clear of "umm," you really don't hear much of it anymore.

But you hear a lot of "so." That word added to the end of a seeminly fine sentence leaves us listeners hanging. The "so" ending is a clear indication to the listener that you're not confortable or not sold yourself on what you're saying. Let's get away from the "so" ending and get back to simply communicating well.