Thank you all for the warm welcome.
As to the meeting on June the 12th you mentioned, what is actually the purpose of such a meeting? If it is an opportunity either to meet interesting people, or to make nice photos, I might be interested. Keep me informed!
Both Maastricht and Liège are nice cities, and the future is open ended, so why not visit both?
Here a picture of the "Montagne de Bueren" in Liége. The sky is blown out, but I liked the contrast between on the one hand the lady, who was rather serious about capturing the view, and the playing children on the other hand.