The Lisbon Treaty supplements the existing European Community treaty, the Treaty of Rome, and the European Union treaty the Maastricht treaty, and it replaces the originally tabled EU Constitution agreed in Brussels in 2004 (which was then rejected by the French and Dutch in referendums a year later).
Effective communication means that we are able to express ourselves, both verbally and non-verbally, in ways that are appropriate to our cultures and situations. This means not only being able to express our opinions and desires, but also our needs and fears and to ask for advice and help.
What does it mean when someone tells you your easy to talk to? In my opinion, I think it means they feel comfortable with you and feel comfortable disclosing more intimate information to you than they might to others.