That depends on what you mean by positional
But I'd focuson not always necessarily going after theh king. At certain levels of chess it works just because people make a lot more mistakes. Instead, you should focus on putting a piece in a position where it exerts more influence on important squares.
1st: Identify a piece (or pieces) that are poorly placed and need to get involved in the fight
2nd: Prioritize objectives
3rd: Make sure you can get a piece to a square where it can't easily be pushed away or the whole process only leads to a loss of tempo
P.S. I came up with these rules really fast so wait for more people to comment before you take these to heart.

I would like to know if anyone can tell me how can i improve my positional play?