What's The Easy Way To Entract With Objects By Your Character In Your Game?

If your game with many objects like; keys, stones, gems, plants, fruits, rocks, TNT handle, doors handle, logs, flowers, bucket,…etc

How to make your character interact with objects? pick it up/hold it on hand/thru it/drop it/hand it on for other player/use it on other object or on your character like eat it/drink it/apply it…etc

should I make Animation for each Object and each Movement? If YES (I hope not) is there any plugin make that easy? is there any animations engine?