It depends on what you want. If you want to play, its fine to take the offered toy. If you don't want to play, it's okay to ignore, too. My dog will offer me toys quite often to take and throw, but if I ignore him or tell him "that's enough" he will go do his own thing, too. My dog is trustworthy, though, and knows which toys are appropriate to play with. If you have a pup that still wants to get into non-toy items, then a little more management may be required.