My first tip for styling print pants starts before you ever buy them. Notice all the colors in the print. Part of the reasons I like these so much is all the warm flora against the cool grey background allows for a wide variety of styling options.
Now that you've found something you like, pull out one or two of those colors you noticed for your top. Here I drew off of the green and orange in the birds.
My final tip is physical balance. Prints can be loud, especially when they run the length of your legs. Use a neutral top with dramatic sleeves to keep your bottom from getting all the attention.
How do you wear print pants?