OMG someone please help to edit picture in AFF :((((((((((((((

i don't know how to do it...

i've been searching everywhere how to do it but.... i just can't understand at all :(((

I WISH SOMEONE TEACH ME :(((((((((((((( PLEASE!!!!

Can someone post some picture with a little step for me to understand it easier? (oh my bad english :(( )