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A new(ish) and [alternative / alternatively] form of greeting and showing respect has been [finding / found] to be more hygienic than shaking hands. We have all seen it on TV. Basketball and baseball players do it [before / after] a teammate scores. Rock stars and actors do it [upstage / onstage] at awards ceremonies. [Even / Ever] U.S. President Barack Obama does it. What is it? Well, it's fist bumping. It's kind of [like / liking] a high five, except the hand is clenched [onto / into] a ball and the other person's fist is given a gentle nudge, [knuckles / chuckles] to knuckles. Researchers at the University of Aberystwyth in Wales have discovered that this twenty-first-century greeting [spreads / spread] one-twentieth of the germs than a traditional handshake does and around one-tenth [for / of] the germs in a high five.

An article on Wikipedia explains that the fist bump [origins / originated] with American motorcycle gangs [in / on] the 1940s. It was easier and safer to fist bump [another / others] rider than to shake hands when two bikes were side by side [at / in] traffic lights. It achieved [global / globally] exposure 70 years later [when / where] in 2008, President Obama and his wife Michelle fist bumped during a televised [presidential / president] campaign speech. There is less skin-to-skin contact during a fist bump so the [chance / change] of spreading germs is lower. A researcher said: "People rarely think about the health [implications / complications] of shaking hands, but if the general public could be encouraged to fist bump, there is a genuine potential to [reduce / deduce] the spread of infectious diseases.