First signs, first words?

To any parents (or aunties or uncles, siblings or friends), what were your baby's (or babies') first signs and/or words? What things do you remember about their language around ten months of age? Is your baby bi- (or tri-) lingual? If yes, what language did/does that baby prefer? At what age did baby begin to code-switch, or go back and forth with ease between the two languages?