You can try a couple different styles. If you want your bangs smooth and straight, blow them dry with a paddle brush. If you have a flat iron, this will make them super straight. Spritz lightly with styling spray and you're done. You could also use a shine spray as long as you use it on the rest of your hair also.
If you want your bangs to slightly turn under at the brows, blow them dry with a radial brush and spray lightly.
I don't know what your hair style is, but the long straight bangs are very trendy right now. You could also side sweep them for a change.
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