not yet due to PKU I am still too little, if I convert my eth will be minus, that's it from me thanks

This means that if you are holding BTC in a wallet that allows you to sign messages (local or online one) you can get free money in the form of crypto coins. Below are some of these coins that send to you an amount of their tokens based on how much Bitcoin you have in your wallet, there could be some more, so if you know of some other one that is missing please point to it in the comments below. A word of warning though, you need to be careful with such coins and more specifically what they ask you for in the form of confirmation you are the owner of a given BTC wallet.