Simple just paint it with purple colour!
No.
Bases and alkali's turn litmus paper purple.
Yes they do turn purple but i do not know why
Yes a Chamelions can turn purple
The alkali makes a universal indicator turn blue.
Well, the pancakes will make you fat, which will in turn make your breasts bigger. so yes
purple+white
when you're cold your lips will turn a blueish purple
No. They are two different varieties.
Caressing your breasts will not make your breasts bigger. One way to possibly increase the size of your breasts is to gain weight.
The make you breasts look bigger but they do not make your breasts grow bigger.
No poop can not turn purple, Unless you have Hyupustionseds, a rare case can turn your waste purple think your safe :) Unless you eat like 10 hole bottles of purple food colouring, then i would be worried :)