Gaining your first bitcoin can be done easily by free methods, it will take some time of course but its also worth it.
I would recommend you to do signature campaigns because they are easy and without risks, they only require you some spare time.
After trying a lot of methods, my signature campaign is indeed the best way to earn bitcoins online. This one always accepts new users so anybody can join. They also do kick out people sometimes if they do not post constructive posts, so carefully read the rules .