When discussing multi-sided objects or forms and 3-d drawing techniques, younger students are interested in drawing 3-dimensional letters but have little experience. They find it easier to take what they know about basic forms and apply that to lettering if they have some examples to look at.
Nail Whitening Trick. OP says: Having white fingernails doesn’t always come naturally. Something that I learned while in esthetics school, from someone that I was practicing pedicures on, was how to whiten your fingernails with Polident.