It's not a natural talent - it's an acquired skill. Some people find it easier to acquire the skill, because they have an easier time grasping visual information, but it's still a skill.
You have to work hard at it. We all start out as children on the stick-figure level - and some people stay there, because they don't work at it. If someone who has never practised drawing picks up a pen as an adult, they will probably attempt to draw 3-dimensional objects instead of stick-figures - but only because we as adults have a better visual grasp of the world than small children do.
To draw well, you have to practise. The same way you have to practise to be a good musician, or a good dancer. There are thousands and thousands of hours of practise behind any skill, and there is NO reason why drawing should be any different.
All "talent" really amounts to is an ease of learning. Just like some people find it easier to learn something if they get to hear it out loud, while others learn better if they get to read a text, and some people find it easier to memorise things if they write them down, having a "talent" for drawing is really only a matter of certain people finding it easier to acquire and process information visually. Some people just find it easier than others to understand things visually, but they still need practise to acquire technical skill.
Telling someone "oh, you're so talented!" feels a little bit dismissive to me. Sure, it's intended as a compliment, but that kind of thinking also dismisses the hours of hard work that goes into becoming good at something.