Originally Posted by Addy's Mom
If he doesn't have a regular speaker in his life, I would be prepared for his not growing up bilingual, but instead work toward facilitating his learning the language well when he's in middle or high school. At least, this is my hope for my son's Arabic. My husband speaks to him in Arabic regularly, but he's picked up very little of it. Hopefully the constant exposure, even if at a minimal level, will help him (particularly with pronunciation) when he's older and there are Arabic classes available.
Yes, the most important thing is actual interaction with someone speaking the language regularly. If he'll be going to daycare, I'd definitely try and find some Spanish-speaking centre/home to take him to. He'll pick it up pretty quick.
Addy's mom - does your parnter only speak Arabic, or a mixture? They say that consistency is really important for language development (either having each parent speaking a different language, or only speaking one language at home, and another when you're out, etc...) My hubby speaks in one language to our son, and I speak English. While he only really speaks in English on his own (he's two now) he completely understands what's being said to him in both languages equally, and he'll answer in his second language if it's a direct question and he's repeating something.
Anyway, in either case, early immersion is another route - kids pick languages up really quick, and yes, the earlier, the better. Some late immersion programs only start in sixth grade, though, so beginning into the preteen years is still effective. Good luck!