how do you change your profile pic

Go to your photo gallery on your profile, search the icon you want as a profile icon and click on the figure.

gallery on your profile pick the pix on your computer that you like to be the icon and pus add as icon like my new one

Well I do is to go to my gallery and you'll see 3 things then click on the pencil then you tap the little box below the typing thing and you'll see a little check mark in the box then press submit then you are done!