Previous correspondents have obviously found the T1 to T2 transfer a bit of a fiddle but actually it isn't that bad just not especially well signposted. Here's the process : on arrival at T1 go through immigration (assuming you're from a non-Schengen country) then follow signs for T2 transfers and go through security screening again. You're now airside in T1. Follow the signs and ground arrows to the T2 transfer gate - where you get taken by shuttle bus (airside) to T2. You're dropped off airside in T2 which is a big shed but fit for purpose - bar/cafe/bookstall/booze shop.