How can one differentiate a scammer from a trustworthy person?

The best way to differentiate a scammer from a trustworthy person is to never put full trust into them, especially if you don't know them. Watch for common techniques that scammers use and if the situation seems too sketchy ignore it and move on.

To be honest, the only scammers I have experienced were on ROBLOX they give you these fake links or say they will do something nice for you if you help them, and then they throw all gratitude out the window. That is what happens to me and my ROBLOX friends at least. Now that I think about it, there are other scammers than just Robloxians. There are some who will try sending fake job apps to you or say you won the lottery when you clearly didn't. My point is, you never know who is a scammer and who is not. My tip, if you don't know them well, don't trust them. Hope this helps out.