can someone advise me what will happen when these 3 cent shares...

can someone advise me what will happen when these 3 cent shares hit th market?
will the price of all shares go down to 3 cents?
it will drop, pause then drop again for a panic selloff?
In which case, I should plase a marke buy order at what price? 2.5 cents?

OK, Yes, I'm a newbie :)