I like to think of tactical play as answering the "how" questions. How do I attack? How do I gain material? How do I defend? It's the means you take to achieve some goals in the game. On the other hand, positional play is answering the "what" questions. What strengths do I have that I can utilize (open file, outpost, active pieces, etc)? What weaknesses does my opponent have (doubled pawns, IQP, cramped spaced, exposed king, etc)?
Obviously, you need to answer both the "how" and "what" questions in a game (you can also achieve the same goal asking two different questions: "how do I defend tactically" vs "what fortress setup can I make to defend myself"), but sometimes one type of questions exists more often in games and is more challenging to answer than the other (ex: closed games require you to identify the "what" more often than "how" because you have all the time you need to move your pieces before the position opens up, so the "how" is not as hard to answer. However, there are not many targets unless you induce some weaknesses or identify pawn breaks, which are all "what" questions), that's when you call a game positional or tactical.
I understand that overall tactical is about attacking sacrificing and trying to open the game and that positional play is about controlling squares and limiting your opponent's ability to make good moves, but in a game, you do both of those?? you develop attacks you cut off their pieces so how is a game either positional or tactical?? arent only single moves positional or tactical? this is where I don't understand how a player can be tactical or positional when they must do both in every single game they play.