The White Noise technique involves speaking over people until they stop listening.
For the more subtle approach, try feigning interest in their hobbies.
Brown Nosers are experts in the art of faking it till they make it.
Echo Chamber is a technique where you repeat what they say, but with a slight variation.
Parroting is the art of repeating back their own words, but with a dash of sarcasm.
Shoulder to Shoulder involves standing next to them, making it impossible for them to ignore you.
Leaning In takes it to the next level, where you're practically in their personal space.