While facing your baby, use two or three fingers to trace the letter «I» on the right side of his abdomen with firm but gentle movements. (babycenter.com)
Your partner could just talk to the baby by placing his mouth on the lower part of the abdomen. (newhealthadvisor.com)
They may then cause loss of appetite, vomiting, lethargy, weakness and swelling of the abdomen with fluid. (brittonroadveterinaryclinic.com)