Add hint for people navigation.
Add hint for people navigation.

xuewenfei/bookyt,hauledev/bookyt,xuewenfei/bookyt,huerlisi/bookyt,wtag/bookyt,gaapt/bookyt,hauledev/bookyt,hauledev/bookyt,silvermind/bookyt,silvermind/bookyt,huerlisi/bookyt,huerlisi/bookyt,hauledev/bookyt,silvermind/bookyt,silvermind/bookyt,gaapt/bookyt,gaapt/bookyt,wtag/bookyt,gaapt/bookyt,wtag/bookyt,xuewenfei/bookyt