you dont press anything. just look. its pretty rubbish cos computer was playing up but you still get to see my awesome hair! and the best bit is, its only temporary, so the colour comes out when your hair is next washed, or it can sometimes fade as mine did. either way, if you do it wrong, just wet your hair and it will come off!!!
sorry about the quality. I had to delete my face. please no one remix this. you can try this cool idea at home but dont straighten too much as hair stinks (mine does lol).