My 11 month old has taken to biting us. Now that he has 8 teeth it really hurts as sometimes he bites hard.

I'm looking for suggestions in what to do about this. I know it's normal for him to starting testing things out but I'm not sure if at his age I ignore it when he bites me and pretend it didn't happen (hard to do because it's usually a shock and it really hurts too) or do I look him in the eye and tell him that it hurts Mummy and not to bite? I know he is too little to understand what I'm saying but I'm sure that some of what I say registers with him because my tone is different.

Or is there something else I should be doing instead?