Should've put that wasn't a possible option heh.
Always tell the truth as it is a virtue, and people will adapt to your curse. Lying all the time will leave you isolated. Would you prefer reincarnation to be real but you revive as a lesser animal each time (one day becoming a maggot born in shit), or would you prefer no afterlife?
edit:After human death you would revive first as something kind of like vermin, but not terrible somehting like a raccoon.