At 1-0 down, Lookman blew Fulham's chance of point by fluffing a Panenka-style spotkick.
But he received support from Bolasie and Niasse in the aftermath.
"Top, top player," Bolasie wrote on Instagram. "Sometimes we learn the hard way."
Former Everton striker Niasse, a free agent following his summer release, added: "Just a lesson and you move on."