Timatao, as one who has played options a lot over the years, my suggestion is you buy the stock on dips rather than buy call options. Options in Poet are relatively thinly traded, especially when you move to strike prices further away from the current price. 

If I were tempted to buy calls on Poet, I would go as far out as possible and go with limit orders only, any market order wil likely give you a very unsatisfactory result. Right now, I think next April is the most distant option contract offered.