When the scammer tells you...
1) to give him your wallet id and password
2) to use a blockchain wallet he created for you.
3) to fund your wallet after you changed your password
4) that you will get 5000% back in a day (high percentual return in a short period of time)
Any more??? let's discuss!!!!
P.S. by the way, I have found a very good platform called gebepay and I have used it a couple of times and found it pretty useful and safe to buy products or services with my ETH, anyway have a look!
Well it's up to you if your not vigilant it comes to scam. That's why we all need to careful anytime don't grab if you know that the offer is big and if the sites is not familiar to you.