CHRIS GRAYLING faced fresh calls to resign yesterday after Britain’s worst-performing railway told staff to deal with frustrated passengers with “positive body language.”

“Open palms” and “understanding … facial expressions” were recommended when dealing with train users exasperated by the chaos on Govia Thameslink Railway.

Rail union RMT said GTR’s sensational briefing, revealed yesterday, showed the Transport Secretary’s “incompetence” was “putting railway staff at risk.”