Make up to $30 in a 45min multi-player auction exp

Hey guys,
we are currently running a fun multi-player auction experiment. Depending on your skills, you can make $8-$30 and we have an average payoff around $16. The exp does not take longer than 45-60mins, including two saliva samples.
We have multiple timeslots every day.

Male, caucasian, right-handed subjects only. SSN required.

Thanks.