Any tool to like all your friends posts?

Hello,
im looking for a tool which will help me to like all my friends posts(and only them!)
thanks for helping

UP!!!!! someone please?

I have not used any of them but you need to search google for "facebook bot like" .. I just saw a youtube video there .. But I do not personally recommend it .. be careful and check the reviews .. I'm sure that ppl with more experience from the BHW will be more helpful in that regards