>>15184734Sure, if your just starting out make sure you practice in a really big field. Mostly people recommend the large on in route 5, its a yellow flower one.
Make sure that you only go for the really fast shaking noisy bush, don't even bother with anything else and also make sure you only go for ones that are at least 4 spaces away from you (check the picture at the top to get an idea).
Yes its true that you can still get the pokemon if its the bush next to you that shook and you enter it, BUT the closer the bush is to you, the higher the chance that your chain will break.