You should be careful around alcohol. If you really aren't up for drinking or going all out, just refuse the drink. Russian use to drink with a lot of snack (zakuska). Vodka won’t affect you this mush if you eat rich meal. But still be careful and never ever try to "over drink" Russians :) - you can quickly get into trouble.And don't ever buy hard alcohol from unknown, dubious or strange looking kiosks, or shady characters. It might not be alcohol at all.Do not mix different types of alcohol even if you see some Russians do that.In case if you do get drunk please avoid going outside on the street - especially at night or alone.