Greg was a bit taken aback when he realized they were playing with cute little teddy bears, but he said nothing - he wanted to make a good impression, after all. In fact, his wish was to do well at this class.
His first attempt at casting Expelliarmus was a bit feeble, but a second attempt fared a bit better, albeit not brilliant, as he forced himself to picture Ron Weasley's stupid face in the bear's place. This was followed by a series of hexes as he pictured other stupid Gryffindors.