hi there i dont usually give out my knitting secrets so write this down
first if you cast on 45 stitches thats usually an average size head, now you can use one of two methods theres the circular needles wich will make the hat round and attatched without seems and then you could use just regular straight needles.(most people use circular) but any ways....... the pattern
K=knit p =pearl
row 1- K1,P1,K1,P1............
row2 -P1,K1,P1,K1............
row 3- K1,P1,K1,P1............
row 4- P1,K1,P1,K1............
this will make a stretchy band so it wont fall off thats called a stockenet stitch
now for10 rows just knit (add more or less depending on dread size)and then reduce once a row, once you feel it is the right size close it off and there you go if you have any trouble message me and ill help