I wanted to ask a couple of questions about the Arkham Horror's rules I couldn't clarify lurking on the Internet:
1 - When in the movement phase you're in the same location of a monster but you don't want to move, do you still have to evade/fight the moster? And if the monster is near a gate do you necessarily have to fight/evade it in order to be drown by the gate?
2 - Can you choose the max movement to do or it has to be the speed value and no less?
Monsters are always dealt during the Movement phase. If you are in the same area of one or more monsters and decide not to move, you still have to deal with them. Hence, you don't move, but have to fight or evade them all in order to stay safe (in this way, monsters guarding gates become a problem in the round following the one you returned to Arkham from an OW).
Gates are entered in the Arkham encounters phase (Phase III)
Hence, if there are monsters guarding gates, you need to deal with them during Phase II (movement) and then you can enter the gate during Phase III
As for your second question, you canno choose the max move, but you can choose the min movement: at the beginning of the movement phase, you receive movement points equal to your speed, and then you decide how many (any, all, zero) of them you want to spend walking in the city or reading books
Hope this helps!