It looks like WolfNight is suggesting an undercut. That is a great hairstyle that also works at many lengths. I usually get a 2 on the sides and let my hair stay long on top, brushing it all to one side.
Of course you can do plenty with it, brush back, forward, including a man bun if its long enough.
Go ahead and ask for an undercut and the stylist will know exactly what you want.