Kiddo began a Spanish class this fall. I am so grateful that I am able to give him the opportunity to learn a foreign language when he is this young and that some of his friends' parents are fluent and can speak to him in Spanish as he learns. I took Spanish in college, but we all know what happens when you don't speak a language... plus, I can't say I was ever fluent. I also know you don't become fluent just by attending a weekly class.
Each day I try to speak a few words to him myself. I ask him questions which he can answer using the vocabulary he has learned, such as ¿Dónde está..? or ¿Qué color es...? or ¿Cuánto...?, simple questions which are small, but daily reminders of the second language he is learning. Soon his skills will greatly bypass mine, but it is helping me, too!
I put up a few visual reminders, too.... just for fun.