currently, the bot plays cards and takes its turn with what looks like a fixed amount of time in between actions. I would suggest varying that up so you look like you are "thinking" about a move every so often.
^ This. + Something important is, as a player you "go through" your cards before actually playing them, this is also viewable by the opponent. Hearthbuddy never does this, he always plays the cards straight out. I can tell you 100% whether i am playing against a bot or not, just by watching this behavior!!
If you know the cards on your hand you can go straight for the card you want to play ,especially when there is only one card that makes sense. So moving over every card of your deck is not necessary. I wouldn't call it a botlike behaviour.
