The document outlines 12 principles of language learning across cognitive, affective, and linguistic domains. The cognitive principles discuss the importance of automaticity, meaningful learning through understanding topics of interest, anticipation of rewards motivating learning, and intrinsic rather than extrinsic motivation. The affective principles cover developing a new identity in the new language, importance of self-confidence, willingness to take risks, and understanding language-culture connections. Finally, the linguistic principles note the impact of native language, stages of interlanguage development, and the importance of communicative competence for authentic use.