Well, being called “adorable”, for one; so you are already on the right track…
As to counters, i think the other mains will agree with me that "Marquis, Whiskey, Ghalt, Thorn and Beatrix are Toby’s 5 hard counters (Beatrix being barely so, because she is able to hit Toby through his forcefield passively. Still, it is a matter of some debate). Soft counters include any character with a gun, in skilled hands. The biggest would probably be ISIC, Caldarius and Mellka. ISIC, because his wards give him a temporary period of immunity from Toby’s railgun with Reflecting Wards, where it can seriously screw you over if you fire at him; the wards reflect his mines too. It is a matter of some debate as to whether or not ISIC can be considered a hard counter to Toby because of this, but i personally consider the two of them to be a wash, because Toby’s high-damage crits absolutely SHRED ISIC when his wards aren’t up. Caldarius and Mellka can harass Toby endlessly with their mobility and his large crit-box, so it is important to not overextend when they are on the other team, ad they can chase kills easily against him; Thorn too.
Above all, do NOT let Toby “set up shop” with his forcefield, and stay in lane uncontested. Without focus, Toby is the biggest force to be reckoned with in Battleborn, and he is inarguably the highest damaging character; a high-risk, high reward artillery battery. At the very least, keep his forcefield down, and you strip away both his biggest offensive boost, as well as his biggest defense.
Any other questions?