I would recommend that you read a bit more on the subject, before you jump into the deep end. It is not recommended to
join signature campaigns, before you have built a sound knowledge on the subject matter. Most replies here will be focussed
on you having to join signature campaigns, so I am giving you a heads up, before you decide to do that.
I would suggest that you go to your local Bitcoin exchange and then buy a small amount of bitcoin {remember, you do not
have to buy a whole bitcoin} ...just to get you started.
Some people sell some of their old furniture or old phones and then use that to fund their bitcoin purchases. Do you have old
outdated stuff laying around? {then sell that, take the money and buy bitcoin on the exchange}
Good luck on your new journey with Bitcoin, hope you enjoy the ride.
Ps :
https://bitcointalk.org/index.php?topic=1629118.0 <---- Read this first.