Donald and Melania Trump dressed to the nines for the inauguration ball on the night of Monday, January 20, but a body language expert revealed their first dance at the Washington, D.C., event didn’t go as smoothly as they would have hoped. For the shindig, the first lady wore a strapless white gown with black accents, white heels and a thick black choker necklace, while the new president donned a tuxedo with a bow tie. The couple was all smiles as they entered the party and even held hands as their supporters cheered them on, and they were then…