Go back a couple of years and the red carpet was like touring the halls of Madame Tussauds. Kylie Minogue, Amanda Holden and Madonna all came under scrutiny for having a seemingly motionless appearance. Today, new โ€˜liteโ€™ Botox techniques lift facial muscles, keeping a few cheeky lines in place, for a natural, approachable look. But if youโ€™re a novice, weโ€™ve unpicked the dos and donโ€™ts of it all.