Although a preference for self-repair over other-repair has been observed in both native speaker (NS) discourse (e.g., Schegloff, Jefferson, & Sacks, 1977) and nonnative speaker (NNS) discourse (e.g., Firth, 1996), researchers note that other-repair still often occurs, especially in interactions with NNSs (e.g., Varonis & Gass, 1983). The present study examines conditions under which other-repair occurs and the response to other-repair in natural NS/NNS conversations in Japanese. Analysis of the data reveals the importance of interlocutors' mutual orientation to each other's verbal and non-verbal behavior in the shaping of other-repair and responses to the repair, particularly in NS/NNS conversation.