Baseball position fielding?

You are not being very clear in this question. Where to throw after you pitch is determined by A) If you actually field the ball, B) What runners are on, and C) How many outs there are. With signs, that would be determined by you, your catcher and your coach. Not all signs are the same. I'm getting an ironic sense that you are very naive, even though you claim to be a pitcher, and pitchers are usually the ones in baseball who do a lot of the thinking. You need to catch up on your baseball if you want to try to be a successful pitcher. Ask your coach, why ask it online?