Bellow are some common scams that people use on animal jam to get good items:
Scam 1 : If you gift me I will trade you den betas and spikes.
Do not do it. they take your items and just run away.
Scam 2 : Trade me i will decline.
Do not do it because if you trade them good they will say yes.
Scam 3 : Who wants gecko ? First trade me good for this neckless then I will trade you the gecko.
Do not do it because you trade them good and they never trade you the gecko. they use the gecko as a bait to get good betas.