For a man of his height, Loki was surprisingly agile. Swift like the wind, really. He dodged the snowball, even though he shouldn't have seen it coming. The second one was a bit easily to evade. He laughed.
"Oh, so you're going to be like that, are you?"
Loki was playful by nature -- once his guard was down -- though he tended to take things a bit too far. The snowball he lobbed at Lydia was far too big.