Sanakhan, you don't need either experience as a flight attendant. Me myself have never had a job related to aviation, and here I am in the recruitment process
@ Hostess: Hey girl, don't stress, everything is gonna be fine for sure!
About liquids, you can carry them on your hand luggage as long as they are contained in 100 ml or smaller packings. The maximum amount of liquid you can carry on your hand luggage is 1 liter. So maximum would be 10 x 100 ml bottles/packings. All the containers must be within one closed transparent re-sealable plastic bag (such as a re-sealable freezer bag or zip top bag) which itself must not exceed 1 litre in capacity or 20cm x 20cm.
Hope it clears your doubts!
