この荷物上にあげてもらえますか？って英語でなんて言うの？

As you are asking a stranger for a favour, its best to be as polite as possible; using please and excuse me. You don't necessarily need to use the words 'overhead locker' or 'overhead bin', which are both the formal terms for the cupboard above your seats on a plane. You could just say 'this' and 'there' and whilst you say these words, point to the different things you are referring to.

Explanation: Sentence one is the complete request, however, in context of the situation of standing in the aisle of a plane and struggling with baggage, sentence two would be quite adequate. 3. To lend a hand means to assist someone. Example sentence: "Sorry I'm late, I was lending a hand to my mother who is decorating her living room."

"Would you mind" is a very polite way of asking. As is "Could I ask for your help?" Both using modal(helping) verbs along with main verb. Can you help is a more straightforward version but with please on end is still acceptable

You would use this phrase in different situations. When you are on the plane and you are struggling with your bag simply asking, "Could you help me with my bag, please?" will allow the other person to know (through the situation) that you need help getting it into the over heard bin.

When asking someone to do something for you then you should always try and be polite this will make them more likely to do it for you Excuse me is a good way to get their attention then 'would you mind' is a polite way of asking them to do something, always add please at the end of what you are asking as well

To give someone a hand is to aid them, especially when it is clear that the person needs help. This is a very common phrase in English. There are many ways to say "Could you help me out?" that all depend on the context of the conversation or the situation.