I'm not sure what you are talking about when you say "move the character just using Kismet". Are you trying to physically make the player move using Kismet? The player should already be able to move with the standard input with no Kismet tweaks. If you mean make the player move by the animations playing, if you set up your animtree correctly, then anytime the pawn reaches a certain speed, then your animtree will take the animations and make them play the correct animation. I'm no big animations guy, but I've played around with them a bit. Just make sure your idle to walk value isn't too high. For example if you have it set to 1000, then your pawn will likely never reach 1000 units of speed, so it will never play the walk animation. You will also need to tweak this value (it is good if you know how fast the value should be in your code) so that there won't be any sliding and such while walking.