Method 2:   Use setheading. See Bouncing Off Walls 1.

to go t1, forever [seth set-head              fd 1 / 20] end Can you draw a little picture as you control the turtle's heading with the slider?

Method 3:   Use towards. See Ant Hill 3.

to aim forever [t1, towards "t2] forever [t2, setx x-coord              sety y-coord] end Press aim, then use the sliders to move the pink turtle as the black turtle continually points toward it.