Indica = couchlock, sativa = energy, hybrid = somewhere in between. That's the cliff-notes version. The reality is messier.
Modern cannabis researchers care more about terpenes and cannabinoid ratios than the indica/sativa label. Myrcene and linalool tend toward relaxation; limonene and pinene tend toward focus and clarity.
When you walk into a ZenZest store, our budtenders will ask: 'What do you want to feel? Body or head? Daytime or nighttime?' That'll get you a better recommendation than any leaf shape.
Start low: 2.5–5mg of THC for edibles, a single hit of flower for new smokers. You can always have more — you cannot have less.