I'm a nice guy

Spock was "disciplining" his little (toy) pigs:

Do you know why I gave you time-out? You must listen to me when I tell you something. You have to listen to me... I'm a nice guy!

Grow tall

Spock: I want to grow taller. I want to grow taller like my friends.

Mommy: Which of your friends are taller than you?

Spock: Mommy and daddy are tall. I want to be tall like Mommy and Daddy.

Good man!

Spock comments on the picture of a page from his Curious George book:

Spock: Look, the man is giving the little girl some ice-cream.

Daddy: Yeah...

Spock: Good man!

Constructions

We were fixing up an Ikea shelf and Brian suggested that we read the instructions. Spock immediately picks up the instruction details and goes:

Spock: Yes, we must read the constructions. First, you fix this. Do we have this part, do we have this? (pointing to a detail on the page)

Mommy: Yes, we do.

Spock: Then, you do this construction. Next you *mumble, mumble* construction. The end!

Speaking Chinese

Lying on his side facing the wall at bedtime:

Spock: *mumbles, mumbles* (to himself)

Mommy: What are you saying?

Spock: Shh - I'm speaking Chinese.

Defiantly cute

During time-out:

Daddy: Do you know why you're sent to time-out?

Spock: Huh? (Denying any wrong-doing)

Daddy: What did you do that Daddy sent you to time-out?

Spock: Huh? (Still alleging innocence)

Daddy: You swung your drumsticks across the room and picked up your drum set stool and threw it hard on the floor despite Daddy warning you not to do so.

Spock: Err... it's possible (!)