These are most the most evident signs of a profile being fake:
Tips
Do not disclose any banking information. If any time you do come across such a thing, the most prudent thing to do would be to report that profile to the site manager/owner.
If the information provided in the profile does not seem believable, then give the profile owner the benefit of doubt, and try asking them for some proof to make it believable for you (like a university degree.) However, if you do not receive the expected response, it would be smart to not contact the profile owner further.
While deciding to meet a prospective proposal, make sure you do that in a public place to avoid any mishap.