Consider what flavours you generally gravitate towards in food and drink. Some people find menthols and mints invigorating, whereas others dislike the sharpness. Some people love candy, fruits and creams, whereas those with less of a sweet tooth may prefer tobacco flavoured e-liquids.Also, consider the VG/PG ratio that your device requires; coils with a resistance of less than 0.8ohms will do better with thick and cloudy high VG (vegetable glycerin) juices, whereas a coil with a resistance higher than 0.8ohms will do better with 50/50 or high PG (propylene glycol) liquids, which are thinner, less cloudy and deliver a noticeable 'chest hit' when inhaled.High VG vaping is often referred to as DTL (direct-to-lung), whereas 50/50 and high PG vaping is usually called MTL (mouth-to-lung), indicating the different ways these vapes are inhaled. DTL is like using an inhaler, whereas MTL is more like the traditional cigarette experience, whether using traditional e-liquid for a perfect throat hit or a nic salt for a smooth inhale.