He'd rather not go to sleep. He can stand while holding on to someone or something. He can walk while holding onto furniture.
Baby drinks from a cup.
He can stand alone for a few seconds or perhaps longer. All babies have their own internal developmental timetable. If you have concerns about your baby's development, discuss them with her doctor. At 9 months, he may start to wean himself from a morning nap. Be supportive, unless he just can't make it to lunchtime without being fussy and overtired.