I need help with a pattern

im making some mittens and im at the thumb part…it says…

shape thumb: 1st row: k15. (m1,k1)twice.knit to end of row.

how do you do this?
please help

M1 is done like this–insert the left needle under the horizontal strand between the stitches from the front.Then knit into the back of the strand

K1=just knit a st

do this twice

Theres a video under abbreviations explained by Amy at the top of page