Look at these examples:
Je veux une glace! I want an ice cream!
Je voudrais un coca, s'il te plaît.I would like a coke, please.
Je veux un câlin.I want a hug.
Je voudrais un câlin.I would like a hug.
Note that to ask for something in French, you could use two forms of the verb vouloir:
je veux (I want) or je voudrais (I would want/like)
Je voudrais is preferable in social contexts such as in a restaurant, as it is more polite and subtle than the blunt je veux (just like in English).
[Note that j'aimerais (I would like) is also very commonly used in more polite contexts.]
Grammar point: Je veux is in Le Présent tense (I want), whereas je voudrais is in Le Conditionnel (I would want/like).
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