That tucking your jumper into your jeans looks good.

( Jobe, Tue 19 May 2009, 16:34, archived)

but if you tuck it correctly, it can make you look bigger

( glued eel /questions/questionsyoudliketoask/post1648081, Tue 19 May 2009, 16:35, archived)

like making your hands into fists with the knuckles just under your biceps
so that when you pose in a t-shirt with your arms folded it makes your muscles look ripping.
( Grrrmachine the indifference engine, Tue 19 May 2009, 16:37, archived)

I opt to put them down my trousers
so I look like a massively endowed flid.
( Undulating Tentacles of Love getting fun down to acceptable levels, Tue 19 May 2009, 16:39, archived)