The present article compares the use of the discourse marker so between English-dominant speakers and English language learners through an analysis of 20 one-on-one audio-recorded sessions with 10 English-dominant speakers and 10 English language learners. While employment of the discourse marker by both speaker groups was found to be discrepant, one prominent difference was discovered in the English language learner data. Move "so", one of "so"'s six discursive functions, was produced with a higher frequency by the English language learners. The findings of the study indicate that while the learner group demonstrated a limited range of functions, as did English language learners in prior studies, they also had an overall lower rate of frequency compared to the English-dominant speakers.