Edward wasn't exactly used to hearing such an intoxicating sound as that of Krel's laughter. It was nice that she was enjoying herself and that she was enjoying herself with him. He took a sip of his pint as Krel introduced herself and then he made sure to join her in trying to welcome the new-comer in. I'm just kidding. It's nice to meet you and she's told you my name, so I probably shouldn't repeat it. He was having a good time and it was nice to enjoy some time away where they were just being a little 'silly'.