As some one also from europe. Tipping frustrates me. I see times where I personally feel i am being nickled and dimed. I for one would never tip for any pick-up where i go and get my own food. I also would not tip ( maybe keep the change) if i am relaxing on a pool chair, need to get up myself and walk to a bar to grab a sida that takes 2 secs to pour. If the bartender walked over to me and asked what can I get you that's a different story.
Imwant to know is my drink costing me 5.00 order I am expected to drop 6 down, maybe a 5 and 2 quarters looks cheap. Even though its 10%
Maybe it's a mentality thing, but I often feel like everyone in the states in services are hawking for tips. Whether bell hop, bartender, consierge, room cleaning. etc. Like I said everywhere I turn it's a dollar here, 5 there. In the end it's like I feel I am being pulled under the table. Younsay my vacation is so much, but what he or she gets this and that.
My opinion, pay your people wages that they can live on. If they go beyond and offer additional service, then tip.