Things that make 2-month-old Calvin Jesse smile:
1. Daddy (just in general)
2. Funny noises, like "blah, blah, blah" or lips buzzing
3. Lucy saying "He's so cute!" in her really high voice
4. Mommy singing "Calvino, bambino, we love you very much"
5. Tickling the left side of his chin
6. The butterflies, purple bear, and/or green frog (depending on the day) on his gym
7. Kissing noises by his face
8. Unexpected eye contact
9. Dancing (though that tends to make him spit up too)
10. Sleep (he smiles in his sleep and it's so cute!)