No problem with booze in the carryon, I do it all the time.

Do bring sealed bottles; less likely to leak all over your clothes in case of accident. You don't want your new colleages to notice your, ah, cologne.

Also, don't try to drink it on the plane. Most, if not all, airlines forbid you to drink alcohol not served by a flight attendant. It isn't always enforced, but why risk them taking it away from you?