Outstanding Orator

 is an achievement in Fallout: New Vegas which is awarded for successfully passing 50 Speech checks.

Hint
Speak with James Garrett at the Atomic Wrangler to start Wang Dang Atomic Tango then Recruit Old Ben (50 speech check) who will then run to the Wrangler and sit at the bar. Talk to him and you will see the speech option is still present.(might not work on patch 1.01 haven't tested)