Zoom in on an Avatar pic

How do I zoom in on my Profile Pic??

You would have to paste the picture into word and right click on it and make sure the picture toolbar is on. Click the black symbol (put your mouse over it and it will say "Crop") and then crop the sides to get rid of everything but what you want to be shown and it will be better when you put the new picture as your icon (copy the picture you cropped and paste it into Paint and then save it in paint as a PNG file)