Any dog show ppl out there? want some tips?

i just bought a 12 week old show prospect chihuahua, yes i know at 12 weeks you cant tell for sure but im hoping lol. i have absolutley no interest in breeding him probably ever, unless he would be a great champion or what not, but i do not see that in the future for us, a champion maybe but a dad no way lol i was just hoping that there are some ppl on here that show their dogs and have tips on how to get my dog used to everything, obviously his breeder is mentoring me also but would love some other tips. thanks!