how do i get my script to when i touch a certain object my size increases. could someone please help thanks!
You should attach a collider to your object and check its trigger checkbox. then write something like this:
function OnTriggerEnter(){
target.transform.localScale += 1; // scale one unit on entering trigger.
}
Hope that helps.
Depends on what you mean by 'touch' and 'my size'
If you mean 'click with mouse' you'll want to use OnMouseDown(). If you mean 'run into it, like a power-up' then see AliAzin's answser.
If you mean 'My 'avatar' gets bigger, like I grow up', then you'll want to increase the size of your player's Character Controller and probably move the camera up higher too, so your 'eyes' are higher off the ground.