Different people show their excitement in different ways.  This becomes apparent at gift-giving occasions.  Some of us jump up and down and scream and play with our toys immediately.  Others say, "Hey cool," then calmly put it aside and continue drinking their coffee.  Sometimes we'll look back on a gift-giving occasion and wonder why the receiver wasn't as excited as the giver, or we'll think back to a gift-receiving occasion and think, "I wish I showed more excitement for this gift because I want the giver to understand that the gift is significant and I'm really happy with it."  But I think we all need to understand that gift-giving means different things for different people, and the excitement or lack there of is often ill-communicated and misunderstood.