SUMMARY ORDER

Petitioner Ren Chang Qiu, a native and citizen of China, seeks review of the April 30, 2009 order of the BIA affirming the November 1, 2007 decision of Immigration Judge (“IJ”) Thomas J. Mulligan denying his application for asylum, withholding of removal, and relief under the Convention Against Torture (“CAT”). In re Ren *841 Chang Qiu, No. A 093 397 343 (B.I.A. April 30, 2009), aff'g No. A 093 397 343 (Immig. Ct. N.Y. City Nov. 1, 2007). We assume the parties’ familiarity with the underlying facts and procedural history in this case.

When the BIA agrees with the IJ’s conclusion that a petitioner is not credible and, without rejecting any of the IJ’s grounds for decision, emphasizes particular aspects of that decision, we review both the BIA’s and IJ’s opinions— or more precisely, we review the IJ’s decision including the portions not explicitly discussed by the BIA. Yun-Zui Guan v. Gonzales, 432 F.3d 391, 394 (2d Cir. 2005) We review the agency’s factual findings, including adverse credibility determinations, under the substantial evidence standard. 8 U.S.C. § 1252(b)(4)(B); see also Corovic v. Mukasey, 519 F.3d 90, 95 (2d Cir. 2008). We review de novo questions of law and the application of law to undisputed fact. See Salimatou Bah v. Mukasey, 529 F.3d 99, 110 (2d Cir. 2008).

As an initial matter, in his brief before this Court, Qiu does not challenge the IJ’s findings that:(l) although he testified and stated in his revised asylum application that, in August 2004, he was beaten, detained, and arrested, and that his wife had a second IUD forcibly inserted, he made no such allegations in his original asylum application; and (2) the “striking similarities” between statements from Qiu’s wife and father undermined his credibility. Thus, he has waived any challenge to those findings, Yueqing Zhang v. Gonzales, 426 F.3d 540, 541 n. 1, 545 n. 7 (2d Cir. 2005), and they stand as valid bases for the IJ’s adverse credibility determination. 1 See Shunfu Li v. Mukasey, 529 F.3d 141, 146-147 (2d Cir. 2008).

Rather than challenge the key findings described above, Qiu disputes the IJ’s assessment of his demeanor. In his decision, the IJ found that Qiu “looked embarrassed when he answered questions, and he appeared concerned that he was making a mistake with his answer.” The IJ also observed that, throughout his testimony, Qiu was “wringing his hands, picking at his hands, and was extremely nervous.” In addition, the IJ noted that when Qiu was asked about his wife’s persecution, he was “very eager to talk about his own purported problems, rather than listening to the question that was presented.” Qiu argues that the IJ did not make specific demeanor findings on the record, making it impossible for this Court to determine whether “these activities occurred at a critical point in the testimony.” However, the record belies this argument insofar as the IJ noted Qiu’s difficulty responding to questions about his wife’s alleged persecution. Qiu also argues that he tended to speak about his own problems because he was nervous appearing before the court, but, although all aliens appearing at their removal hearing are likely to be nervous, no reasonable fact-finder would be compelled to credit this explanation. See Xiu Xia Lin v. Mukasey, 534 F.3d 162, 167 (2d Cir. 2008). In any event, we generally defer to an IJ’s demeanor findings and find no reason not *842 to do so here. See Majidi v. Gonzales, 430 F.3d 77, 81 n. 1 (2d Cir. 2005) (IJ “is in the best position to discern, often at a glance, nevertheless attempting truthfully to recount what he recalled of key events or struggling to remember the lines of a carefully crafted ‘script’; and whether inconsistent responses are the product of innocent error or intentional falsehood”); see also 8 U.S.C. § 1158(b)(l)(B)(iii).

Ultimately, the IJ’s credibility determination was supported by substantial evidence. See 8 U.S.C. § 1252(b)(4)(B); Xiu Xia Lin, 534 F.3d at 167. Therefore, the IJ did not err in denying Qiu’s application for asylum, withholding of removal, and CAT relief because the only evidence that Qiu would be persecuted or tortured depended on his credibility. See Paul v. Gonzales, 444 F.3d 148, 156 (2d Cir. 2006).

For the foregoing reasons, the petition for review is DENIED. As we have completed our review, any pending motion for a stay of removal in this petition is DISMISSED as moot. Any pending request for oral argument in this petition is DENIED in accordance with Federal Rule of Appellate Procedure 34(a)(2), and Second Circuit Local Rule 34(b).