22 Things Americans Don't Know They Do That Make It Obvious They're American

[Platone]

 Travel! A lot of us do it — whether it's down the street or to a far-off destination. When we travel, we ~try~ to blend in, but alas, as tourists we can usually be spotted from a mile away.

[petahasher]

Time-waster/scammer.

He is trying to trick the other party into think they received 7.9 ETH, however he sent 7.9 Ropsten tokens, which are notated as "7.9 Ether"

I agreed to do the deal, and this was the transaction that was sent to me: https://ropsten.etherscan.io/address/0xa3fea9c3046fcaa9fbaec6d1e5d4237a851d4bf0

Be careful for scams like these.