By Tom Hals and Jody Godoy (Reuters) – As Elon Musk prepares to take the stand at a trial to determine whether he misled investors about taking Tesla Inc private in 2018, the billionaire can expect his tweets, public comments and his thin skin to be used against him, legal experts said. Tesla shareholders want a jury to find Musk liable for a 2018 tweet that he had “funding secured” to take the electric vehicle maker private, which sparked wild swings in the company’s securities. Investors lost millions of dollars as it became clear no buyout was imminent, the shareholders allege. Musk, who is…