To make your character talk while walking you would just use an animation that has talk & walk in it and use that along with the code for wherever she’s walking to by adding AND MC does it while animationhere
Example:
&MC walks to spot 1.280 -87 -2 in zone 1 in 5 AND MC does it while walk_talk_neutral_loop
even with the code you used, you can replace the walk_neutral with a walk & talk animation.
LL animations:
walk_talk_happy_loop
walk_talk_neutral_loop
walk_talk_box_neutral_loop
walk_talk_phone_neutral_loop
INK animations:
walk_talk_happy
walk_talk_phone