I have received quite a few erc20 tokens into my eth wallet from airdrops. I know it's probably easy, but can you good people explain to me how I use the tokens please. For example can I just exchange them directly into eth in my erc20 wallet or do I have to send them somewhere first?
Thank you in advance.
First of all you should understand what you want to do with your free tokens. If you decided to hold - there is no need to do something else just forget about them for couple of years
If you want to sell them - you need to send them to exchanges. But for making transactions you need to have some ethereum on your wallet(because you need to pay fees).
So first send eth to your wallet, then you can send your tokens to your exchange wallet to sell.