Yer thats right but if you look at the physical differences between a sativa and an indica then you will probably notice the sats leaves are thinner and longer whereas the indica leaves are broad, wider and shorter. Also the indica buds tend to be more dense and resinous as well as the plant having shorter internode space and more budsites.
These are just generalisations and not a hard and fast rule to distinguishing a plant. Buy indica or mainly indica seed that is a short grow with a short plant as advertised on the strain guide of seedbank shops. This should be the easiest option for the new grower. I recomend strains like skunk, northern lights, superskunk etc etc to be the easiest and smelliest plants to grow. Sensi seeds makes a few of the original skunk strains for a cheapo price and order from attitude and get an auto fem seed free too for you to play around with. Peace
Edit- ("I can't even spell sativa, is this correct??? I keep on wanting to spell it satavia, i think i'll just stick to the abbreviation 'Sat'.")