Just tried typing in
http://www.nyc.com and a site popped up.
said this about tipping...
"Tipping and Gratuities
Please take note, tips are not automatically added to restaurant and hotel bills. In restaurants, a tip to the wait person of 15% to 20% of the total check is customary. In New York City, you can easily leave the appropriate tip amount by doubling the 8.625% sales tax.
Some ther tipping guidelines:
15% to 20% of the fare to taxi drivers 10% to 15% of the tab to bartenders $1 to $2 per bag to bellhops $1 to $5 per day to hotel maids $1 to $2 per item to checkroom attendants $1 to $2 to valet parking attendants 15% to 20% to hairdressers
Finally, you are not expected to tip theater ushers, gas station attendants, or fast-food restaurant employees."