An animal is tame if it is not afraid of people, and is friendly to them. Tame animals generally won't try to hurt people or run away.
The opposite of tame is wild, and a similar word to tame is domesticated.
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You tickle someone by poking them or running something like your fingers or a feather over their skin. Tickling feels funny and makes you laugh and squirm.
It is almost impossible to tickle yourself. Children tend to be much more ticklish than adults. People are usually ticklish under their feet and on their ribs.
A toot is the sound a horn makes, or anything that sounds similar to that noise.