Just a newbie
I suggest you do not invest first, you can get token of a project for free just by like and share each post of their facebook page, it's good for you to understand about crypto currency rather than having to spend money.
free coins? well, I tried dodge but did not get anything on my wallet...
Don't focus on the free stuff. Grab a small number of bitcoin, then do research alot about it. That's a much better plan than just going in on something just because you want to earn money. Newbies always tend to overlook the great technology around bitcoin and blockchain technologies in general.