"Y-yes, enjoying it quite a bit." Mask said, feeling around for and taking Rivers hand. He shook it and smiled a bit. "The band is g-great and your friend is n-nice..." He then regretted saying that and fell silent. He sensed discomfort and annoyance of some kind from Rivers. Even though he knew it was technically his fault (though how that was, he had no clue at all) and he knew Rivers had every right to seem bothered, Mask was still nervous about it. He tried to remain nonchalant on the outside but inside, he was shaking.