Umm, jf02, I have had an occasion where I for whatever reason wasn’t able to participate in the dancing, and believe you me, my heart most certainly did sing with great joy from just being in the presence and watching the people dancing with the Torah HaKedosha.
BTW, why do thousands upon thousands of people who didn’t do Daf Yomi attend the Siyum HaShas considering that they hadn’t participated in its completion? It is a joyous celebration of Torah and everyone wants to attend the celebration even if they’re not directly up there saying hadran alach.