An electronic cigarette or e-cigarette make look like a typical cigarette, but it's actually an alternative to typical cigarettes containing tar and carbon monoxide. An electronic cigarette runs on a small battery and has a small cartridge filled with a liquid containing nicotine, as well as an atomiser which attaches to the battery. The atomiser heats the cigarette and turns the liquid into a vapour that's non-toxic. Smoking an e-cigarette might be a difficult transition to make, as the entire experience, while similar to smoking, isn't identical. The less you cough when you smoke e-cigarettes, the more enjoyable the experience will be.
Charge the battery of the e-cigarette before using it. A fully charged battery will produce the greatest amount of vapour and will make the entire experience more familiar, which is the optimum starting point when beginning to smoke e-cigarettes.
Select a cartridge flavour that you are used to. Many e-cigarette manufacturers produce a wide variety of cartridge flavours, from vanilla to cherry to mocha. If you're not used to these flavours but choose to smoke from an e-cigarette with such a cartridge, it could cause a coughing reaction. All e-cigarette manufacturers make a tobacco and menthol flavour, if that's what you're used to.
Select a level of nicotine in the cartridge that you are used to. For example, if you smoked ultralight cigarettes in the past, select an ultralight cartridge.
Take slow, shallow drags from your e-cigarette to acclimatise yourself to the taste and process. This will get your throat and lungs used to the experience and prevent you from coughing.