Need help on being a good santa for 3 & 4 year olds!?

Been roped into dressing up as santa for my kids nursery, trouble is i'm short of santa claus cliche's, i know Ho Ho Ho and merry christmas but what else would a kid expect from santa? Without getting libellous , lol, wouldn't want other parents saying "what did he say", help much appreciated, and it's for the kiddies.