1. flex muscle

Today we are going to learn “flex muscle”. It means to demonstrate one’s influence, power, or strength.
(1) The US flexed its muscle by flying two bombers over the Korean peninsula “in direct response” to North Korea’s announcement that it conducted another test of an intercontinental ballistic.
(2) Hollywood continued to flex its muscle, with “Slumdog” from the Oscar-winning film “Slumdog Millionaire, ” referring to child inhabitants of Mumbai slums, making its mark in global language.

2. uptick

Another word is “uptick”. It means a rise or increase.
(1) U.S. officials suggested that drought and famine could be the cause of the uptick in piracy off Somalia.
(2) Conclusion: The companies got a temporary uptick in share prices but no lasting benefit.