Biting out of excitment

[Artsand crafts]

My son was biting out of excitement before. It has been about 2 months that he has not do it. He is 20 months. What worked for me to get him to stop was: at his level and looking at his eyes and in a calm voice (no showing anger) I told him that he was excited, but that hitting hurts and X must be in pain. If he was excited he should hug, kiss, jump. I did that about 3 times (even when he was about to bite). Now, he is a wonderful boy. He now likes to hug, kiss, and I seeing him jumping in excitement several times. Young kids sometimes just do not know what is the appropriated behavior to match their emotions.