Against alistar, Alistar can and probably will engage as soon as you get into range. Try to stay at max range at all times to limit his ability to engage with his t>e.
 
Even though Alistar’s Headbutt is a point and click ability, you can still dodge it by dashing, blinking or Flashing before it hits you. You can also interrupt the dash with knock-ups, knockbacks or knockdowns.
 
Alistar will look to roam if the lane gets stale. Make sure to punish him by looking to fight the enemy ADC or zone them away from farm while he’s gone. Make sure you ping as soon as he leaves lane so your allies know he’s gone. Against alistar, Alistar can and will probably engage as soon as you enter the range. Try to stay within the maximum range at any time to limit its ability to engage with its t>e. Even if Alistars Headbutt is a point and click capability, you can still dodge it by pointing, flashing or flashing before it hits you. You can also interrupt the dash with punches, punches or punches. Alistar will try to wander if the track is blocked. Make sure to punish it by trying to fight the enemy CDA or zone them away from the farm while it's gone. Make sure that you ping as soon as it leaves the track so your allies know it's gone.