Just bookmark this web
http://myetherwallet.com you are no need to click if someone give your myetherwallet link.. it can be a phising link.
Be careful when you type your eth address, make sure you copy paste the address not the private key.
Don't pay first to start the airdrop, you're just joined airdrop to get free coins, not to pay his Shitcoin.
last, be active member.
If you are weary of clicking links then you could open them on a phone or a tablet, something that is not tied to your crypto in any way.
Never give out your private key, wallet.dat or keystore. If you are asked to type something into a console and paste the results, like into a webform, make damn sure you know what information you are passing on. It is your responsibility to know the difference between an address and a key. I avoid any airdrop that asks me to donate.