Mr. Matthew Assael

Candidates who ramble on can sound as if they're trying to justify their answer or explain it away, says Matthew Assael, director of the pharmaceutical search division at Lloyd Staffing in Melville, N.Y.

"If they go on and on, they may be trying to cover something up," says Mr. Assael.
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Above all, be honest, says Mr. Assael."You don't want to be caught in a lie," he says.
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It also raises concerns that the candidate is difficult to get along with, says Mr. Assael.