Greek PM George Papandreou is to hold further talks with European leaders as negotiations continue in Athens on a new instalment of bailout loans.
He will hold talks with European Council President Herman Van Rompuy in Warsaw before travelling on to Paris to meet French President Nicolas Sarkozy.
International inspectors are in Athens deciding whether Greece should receive bailout funds of 8bn euros (£6.9bn).
The talks have triggered angry protests on the streets of the Greek capital.
The BBC's Chris Morris in Athens says Mr Papandreou is on a charm offensive, trying to convince his European colleagues that Greece can meet the demands imposed upon it by a tough austerity programme.
The unpopular reforms are vital to guarantee international loans aimed at stopping the debt-ridden country from going bankrupt.
