A.S.
Mine does the same thing, now 13 months old. I have the same high chair. Remove the tray when feeding and she may like that. Use the tray, and put some puffs or cherrios on it and he/she will start to like it. Also, fruits and veg as he/she gets older. Sometimes they have to be in the mood to eat, so try tweeking the times too. She also like to play with the tray after, so I let her. Good luck, its always something!