How can I to Small Wild Goose Pagoda from SkyTel Hotel in Xian. Can I take subway line 2 or what bus?

Subway line 2 won't take you there directly. And there is only aorund 2.3km between, so you may consider taking a taxi to get there, at the cost of CNY8. Or use bus to travel. Walk from the hotel to South Gate bus stop to take bus no. 46, 29, 40, 713, 203, 204 or 258 to get to the pagoda.