| 31. | Use it as a conversation starter _ all you gotta do is keep a straight face.
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| 32. | It's hard to keep a straight face when you're being called the biggest jerk in the world.
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| 33. | Pakledinaz tried to keep a straight face _ despite its lipstick marks _ during his acceptance speech.
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| 34. | Sorry, just couldn't keep a straight face.
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| 35. | Whiteboy finds this absolutely hilarious and can barely keep a straight face when Real enters the room.
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| 36. | And must therefore keep a straight face.
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| 37. | Of course, Tapia ( 41-0-2 ) cannot keep a straight face anywhere, much less in the ring.
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| 38. | No one can keep a straight face.
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| 39. | Even Madison can't keep a straight face.
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| 40. | He could not keep a straight face.
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