Muslim here, curious about visiting my local gurdwara.

I pass a fairly large gurdwara on my way to mosque, and curiousity has gotten the better of me. A few questions:

• Am I going to be OK going whilst being obviously Muslim? I've been told a gurdwara is open to all but I feel I'm likely going to 'stick out' so to speak. Covering my head is not an issue, I do that anyway, but I'm particularly wondering if wearing my abaya is a good idea (it's a long-sleeved, floor length dress).

• Do I just go in whenever or is there a 'best' time to go? Would it be worth ringing/contacting ahead to get someone to meet me there? Or should I just go and talk to someone?

• Is the fact I don't speak a word of Punjabi an issue? The impression I get is that most of the Sikhs here are native-level Punjabi speakers, or at least have knowledge of the language. I don't know a single word of it.

I just want to make sure I get everything right...any help is deeply appreciated in advance. :)