You should just do some campaigns to gain the bitcoin you want, on this way you can do it without any risks.
The nice factor of using campaigns is that you are also learning from it.
Yes that is a good way to get your first whole bitcoin, but it is going to be a long time before it happens. And don't forget that there are a lot of campaigns out there, like facebook campaign, twitter campaign, avatar campaign and PM campaign. And you must be patient with it so that you are going to have one bitcoin.