I've used Uber quite a bit and never seen how I could tip. Apparently that option is only available on uberTAXI: http://support.uber.com/hc/en-us/articles/2022

I've used Uber quite a bit and never seen how I could tip. Apparently that option is only available on uberTAXI: http://support.uber.com/hc/en-us/articles/202290128-Do-I-have-to-tip-my-driver- http://support.uber.com/hc/en-us/articles/202290128-Do-I-hav...