Musar sobre Proverbios 5:8

ולא תלכו בחקות הגוים . The warning not to imitate Gentile practices (20,13) is based on the belief that all their cultural activities are merely preparations for עבודה זרה, idol worship. Their forms of entertainment are displays of promiscuity, which itself is a form of paganism. The Torah warns you to distance yourself from such entertainment, not even to walk in the neighborhood where such entertainment is being offered (Proverbs 5,8). Since the Torah does not make this prohibition dependent on your actually doing something (as opposed to the previous verse which discusses proper performance, ועשיתם of G–d's commandments), in this case the mere תלכו is part of the prohibition.