fix bug that causes hmd avatar eyes to be all the way to the side when there's not another avatar to look at

interface/src/Application.cpp

@@ -4131,7 +4131,7 @@ void Application::updateMyAvatarLookAtPosition() {
                 lookAtSpot = transformPoint(worldHeadMat, glm::vec3(0.0f, 0.0f, TREE_SCALE));
             } else {
                 lookAtSpot = myAvatar->getHead()->getEyePosition() +
-                    (myAvatar->getHead()->getFinalOrientationInWorldFrame() * glm::vec3(0.0f, 0.0f, -TREE_SCALE));
+                    (myAvatar->getHead()->getFinalOrientationInWorldFrame() * glm::vec3(0.0f, 0.0f, TREE_SCALE));
             }
         }