Learn Spanish (Latin America): Disculpa, ¿me puedes ayudar?

While using the imperfect subjunctive like quisiera is great for formal or extra polite requests, using the simple present tense ¿puedes...? (can you...?) is extremely common and perfectly acceptable in everyday, casual situations. If you wanted to use the lesson's grammar to be more polite, you might say Quisiera pedirte un favor (I would like to ask you a favor).

Can I put the me at the end of the sentence instead?

Yes, you can! Both ¿me puedes ayudar? and ¿puedes ayudarme? are perfectly correct and mean the exact same thing. When you have a conjugated verb (puedes) directly followed by an infinitive (ayudar), object pronouns can either go before the conjugated verb or attach right to the end of the infinitive.

Why does the sentence use disculpa for 'sorry' instead of lo siento?

Disculpa and perdón are used to get someone's attention or excuse a minor interruption, exactly like 'excuse me' in English. You use lo siento when you feel genuine emotional regret or sympathy, like apologizing for a big mistake or hearing sad news.

How would I ask this same question to someone older or in a formal setting?