>>17032101A Treecko in mid-climb takes one look at you, and camouflages to disguise himself as tree bark. In similar manner, a Tangela and an Oddish try to disguise themselves as part of the greenery, while a Foongus horde all pretend to be discarded pokeballs that tend to shiver at random intervals.
In fact, the only Grass-type that doesn't seem to be afraid of you is a Hoppip, whose unchanging expression of happiness and lack of general movement is enough to unnerve you in more than one way.
It just sort-of stares at you with that same little grin.
A) Interact with the Hoppip.
B) Interact with a Carnivine.
C) Talk to Clyde, the gym guide official.
D) Start ascending the tree.