Trip advisor is a good one to fake.
Another thing you could do if you're staying at a chain hotel like Choice (Sleep, Comfort, Quality etc), IHG (Crowne Plaza, Holiday Inn, Intercontinental etc), Starwood (Westin, Sheraton) is wear one of the brands on a polo or something. A lot of those hotels aren't owned by the parent company. Independant owners pay an annual fee to "fly the flag" out front so to speak. They also have to remain compliant to a set of rules that protects the brand. So, when someone asks you why you're weaing a Westin shirt, just tell them you're with "brand compliance" and you "hope you enjoy your stay, because it makes your job a lot more pleasant".
Another thing you can do is act foreign. Hotels love people coming in from other countries and view them as higher value guests in a lot of cases. They typically stay longer, spend more money in the gift shop, eat at the hotel restaurants (much more than American guests) and ring up phone charges on their bill.