The easiest spot to avoid being pushed away is in between it’s front legs. It will sit there and repeatedly do the pushing motion but you will remain untouched so you can tame it without running all around trying to get near it.
Know that it is easiest to passive tame them, which means walking up to them and feeding them
Get a TON of berries, everytime you feed it, it will go up like 3-5%
Have a high speed, high attack flying dino, (high attack in case you "miss click")
HAVE PATIENCE, diplo's are a stubborn tame, they will push you playfully (hence the flying dino)
MAKE SURE there are no carnivores around, if there are carnies around it will attack it there is a chance of it dying, it will get rid of all your hard work, and most importantly, IT MAY DIE (R.I.P. attempted tame #1 + 2 😢)
Plz note I am not an "high level player" that has a giga, I am lvl 50, (51 at the time I wrote this, almost 52) so I am not that experienced, tho I am sorta, I don't know that much about the game
When your trying to dame it use majoberries bring at least 100 of them and some food u can use all berries but majo works best and if u don't have a crossbow and tranq arrows use passive tame which u just walk up to it and feed it but it will push you around so have a closed back wall to be safe and be aware of your surroundings