Subway...
Re: Subway...
The number 6 train stops at 33rd and Park. If you're coming from Penn Station, you could take the crosstown bus at 34th st, take it down to park.
Re: Subway...
You'll have to take the bus to get across town over there. There's no subway from Penn to midtown east.
Re: Subway...
Or you can take the N train to 28th street and walk... but the 6 train is probably your best option.
Re: Subway...
If you are coming from Penn - your best bet is to walk. It isn't far. I work on 33/Park - so it is only a few blocks more. The 6 train has a 28th and Park stop and it runs in the daytime - unless something weird is going on like construction...but to get the 6 coming from Penn is a pain. To take the bus or another train like N will be more of a hassle.