16 inch wheels, lower slightly, colour code mirrors and bump strips, tint windows, better stereo, maybe a 2 inch exhaust for a bit of noise.
Keep it simple and classy.
Don't try to bling it up, don't try to make it go fast... Because you'll just end up looking like a knob. Its a Paseo.
Just enjoy it as a perfectly respectable runaround until you eventually upgrade into something worth dumping a bit of cash into.