Check the Project Team, the Dev, their background. lastly only c the project point.
Scam can even said im the winner bla bla bla, they can oso give the wrong information, how many btc invested, how many eth deposit bla bla bla
do more research, sometime u will found out the person picture oso a scam too,lol
Good Luck
I may add also to check the background of the bounty campaign manager. There are bounty manager who can be trusted and noted to be good in choosing a project.