Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to keep smoking systematically without getting addicted [title] Avoid nicotine triggers. [step] Many smokers find that they experience cravings whenever they are in situations or places where they smoke most often. If you tend to smoke at parties, bars, or around a particular group of friends, and you want to temper your smoking habits, it may be best to avoid those triggers until a day when you're ready to smoke.

Ending1: [substeps] Try quitting smoking when you're sober. It's a lot easier to be upright and self-assured with nicotine in your blood, and to maintain that confidence during the smoking period. Ending2: [substeps] If you notice cravings recurring, don't allow yourself to become addicted completely. Cravings do occur, just not when you're exposed to them. Ending3: [substeps] Smoking anywhere is risky, but you'll have fewer bad cravings and fewer bad ones. Realize you can respond better to cigarettes when you're alone with a big group of friends. Ending4: [substeps] The first step in avoiding triggers is to identify what your triggers are. Think about when you most often smoke, and compare that place/scenario with your frequency of cravings between cigarettes.

Answer format: ending1/ending2/ending3/ending4